| Subject | English | Chinese |
| tech. | accumulations of quaternary period | 第四纪堆积物 |
| earth.sc. | Alaska Quaternary Center | 阿拉斯加第四纪研究中心 |
| chem. | aliphatic quaternary ammonium inner salt | 脂族季铵内盐 |
| tech. | alkyl quaternary ammonium salts | 烷基季铵盐 |
| geol. | American Association for Quaternary Research | 美国第四纪研究协会 |
| geol. | American Quaternary Association | 美国第四纪协会 |
| chem. | ampholytic quaternary ammonium compound | 两性季铵化合物 |
| chem. | amphoteric quaternary ammonium compound | 两性季铵化合物 |
| tech. | Association of America for Quaternary Research | 美国第四纪研究协会 |
| telecom. | 2 bits of binary code is replaced by a quaternary or 4-level bit | 2B1Q 码每二位二进码代以一位四电平码 |
| earth.sc. | Canadian Quaternary Association | 加拿大第四纪协会 |
| cryo., org.name. | Chinese Association for Quaternary Research | 中国第四纪科学研究会 |
| met. | class I quaternary equilibrium | 第一类四相平衡图 (L=α+β+γ+) |
| met. | class II quaternary equilibrium | 第二类四相平衡图 |
| met. | class III quaternary equilibrium | 第三类四相平衡图 |
| met. | class IV quaternary equilibrium | 第四类四相平衡图 (L+α+β+γ=δ) |
| met. | class m quaternary equilibrium | 第三类四相平衡图 (L+α + β=γ+δ) |
| met. | class n quaternary equilibrium | 第二类四相平衡图 (L+ α=β+ y+ δ) |
| tech. | columnar section of quaternary system | 第四系柱状图 |
| earth.sc. | Committee on Quaternary Period | 第四纪委员会 |
| earth.sc. | Committee on Studies of Quaternary Period | 第四纪研究委员会 |
| el. | constant envelope quaternary phase shift keying | 固定包络四相移相键控 |
| tech. | correlation columnar section of quaternary system | 第四系柱状对比图 |
| geol. | Cretaceous-Tertiary-Quaternary mixed | 白垩一第三一第四系地层未分 |
| tech. | Cretaceous-Tertiary-Quaternary mixed polarity superchron | 白垩一第三纪一第四纪混合极性超时 |
| tech. | cyclic quaternary compound | 环状四级取代化合物 |
| tech. | cyclical quaternary compound | 环状四级取代化合物 |
| org.name., cryo. | Department of Physical Geography and Quaternary Geology, Stockholm University | 斯德哥尔摩大学自然地理和第四纪地质学系 (瑞典) |
| tech. | depth of overlying quaternary system | 第四系覆盖层厚度 |
| chem. | di-quaternary ammonium cellulose halide exchanger | 双季铵纤维素卤化盐离子交换剂 |
| chem. | di-quaternary ammonium thiocyanate | 硫氰酸双季铵 |
| chem. | di-quaternary exchanger | 双季铵盐离子交换剂 |
| water.res., ecol. | dialkyl-polyoxyethenyl quaternary ammonium compound | 双烷基聚氧乙烯基三季铵化合物 |
| tech. | district of quaternary strata | 第四纪地层分区 |
| chem. | ethoxylated quaternary | 乙氧基化季铵盐化合物 |
| water.res., ecol. | ethyl acrylate quaternary ammonium salt | 丙烯酸乙酯季铵盐 |
| chem. | fatty acid quaternary ammonium salt | 脂肪酸季铵盐 |
| oil | fatty quaternary amines | 脂肪族季铵类 |
| tech. | genetic type map of quaternary system | 第四系成因类型图 |
| tech. | geologic map of quaternary system | 第四系地质图 |
| tech. | geological map of quaternary system | 第四系地质图 |
| hydroel.st. | Geomorphologic and Quaternary geological map | 地貌与第四纪地质图 |
| el. | high temperature quaternary | 高温四元的 |
| tech. | insoluble quaternary ammonium salt cation ion resin bactericide | 不可溶性季铵盐阳离子树脂杀菌剂 |
| earth.sc. | International Association of Quaternary Research | 国际第四纪研究协会 |
| geol. | International Association on Quaternary Research | 国际第四纪研究协会 |
| earth.sc. | International Association on Union for Quaternary Research | 国际第四纪研究联合会协会 |
| earth.sc. | International Quaternary Research Association | 国际第四纪研究协会 |
| earth.sc. | International Union for Quaternary Research | 国际第四纪研究联合会 |
| geol. | International Union for Quaternary Research | 国际第四记研究联合会 |
| tech. | interpreted quaternary deposit type of engineering foundation | 解译工程基础第四系沉积类型 |
| earth.sc. | Investigation on Quaternary Marine Paleoenvironment of Western North Pacific | 西北太平洋第四纪海洋古环境研究 |
| geol. | Investigation on Quaternary Marine Paleoenvironment of Western North Pacific | 太平洋西北地区第四纪海洋古环境研究 |
| tech. | isopach map of quaternary sediment | 第四纪沉积物等厚线图 |
| tech. | isopach map of Quaternary system | 第四系等厚图 |
| tech. | isopach map of Quaternary system | 第四系厚度等值线图 |
| water.res., ecol. | isoquinoline quaternary ammonium salt | 异喳冰季铁盐 |
| earth.sc. | Japan Association for Quaternary Research | 日本第四纪研究协会 |
| cryo. | Journal of Quaternary Science | 第四纪科学 (英国) |
| desert. | Late Quaternary | 第四纪晚期 |
| tech. | lithologic -geologic map of quaternary system | 第四系岩性地质图 |
| tech. | lithological -geological map of quaternary system | 第四系岩性地质图 |
| chem. | long-chain quaternary ammonium ion | 长链季铵离子 |
| tech. | loose deposit of quaternary | 第四系松散堆积物 |
| water.res., ecol. | modified urea-formaldehyde resin quaternary ammonium salt | 改性腺甲醛树脂季钱盐 |
| water.res., ecol. | 4-N'-methyl-1-piperazinylally-N-butyl-1,8-naphthalimide allyl chloride quaternary ammonium salt | 4-N'-甲基-1-哌嗪基-N-丁基-1,8-萘二甲酰烯丙基氯季铵盐 |
| tech. | non-quaternary | 非季铵盐的 |
| tech. | observation point of Quaternary | 第四纪地质观测点 |
| el. | organic-quaternary compound | 有机四元化合物 |
| desert. | original type of Quaternary deposit | 第四纪沉积类型 |
| oil | poly quaternary amine | 聚季铵类 |
| polym. | polymeric quaternary ammonium compound | 高分子季铵化合物 |
| oil | pre-Quaternary | 前第四纪 |
| desert. | Pre-Quaternary Relic | 上第四纪残余物 |
| tech. | profile of quaternary system | 第四系剖面图 |
| el. | pulse quaternary modulation | 脉冲四进制调制 |
| tech. | quasi-quaternary | 伪四元 |
| chem. | quaternary adduct | 四元加合物 |
| tech. | quaternary adduct | 四元加成物 |
| chem. | quaternary alkanol | 季化链烷醇 |
| chem. | quaternary alkanolammonium type resin | 季烷醇铵型树脂 |
| chem. | quaternary alkoxypropyl ammonium halide | 四元烷氧基丙基卤化铵 |
| chem. | quaternary alkyl ammonium hydroxide | 氢氧化烷基季铵 |
| chem. | quaternary alkyl ammonium type resin | 烷基季铵型树脂 |
| chem. | quaternary alkyl aryl methyl ammonium chloride | 四元烷基芳基甲基氯化铵 |
| chem. | quaternary alkylphosphonium salt | 四烷基膦盐 (R₄PX) |
| chem. | quaternary alkylphosphonium salt | 季辚盐 |
| met. | quaternary alloy | 四元合金 |
| tech. | quaternary alloy | 四元素合金 |
| tech. | quaternary alloy steel | 四元素合金钢 |
| tech. | Quaternary alluvium | 第四纪冲积物【地】 |
| tech. | Quaternary alluvium | 第四纪冲积层【地】 |
| geotech. | Quaternary alluvium | 第四季冲积层 |
| geol. | Quaternary alluvium | 第四纪冲积层 |
| cryptogr. | quaternary alphabet | 四进制字母表 |
| met. | quaternary amine | 季胺 |
| leath. | quaternary amine | 季铵 |
| med. | quaternary amine | 季铵盐 |
| met. | quaternary amine anion exchange resin | 季胺阴离子交换树脂 |
| met. | quaternary amine anion exchanger | 季胺阴离子交换剂 |
| met. | quaternary amine resin | 季胺树脂 |
| tech. | quaternary amines | 季铵类 |
| chem. | quaternary amino ethyl | 季氨乙基 |
| chem. | quaternary aminoethyl | 季铵乙基 (QAE) |
| met. | quaternary ammonium | 季铵 |
| agric. | quaternary ammonium | 四级铵 |
| chem. | quaternary ammonium ampholytic | 季铵型两性表面活性剂 |
| oil | quaternary ammonium base | 季接碱 |
| ecol. | quaternary ammonium base | 季铵碱 |
| polym. | quaternary ammonium base cellulose | 季铵纤维素 |
| chem. | quaternary ammonium base cellulose | 季铵碱纤维素 |
| polym. | quaternary ammonium cellulose anion exchanger | 季铵纤维素阴离子交换剂 |
| polym. | quaternary ammonium cellulose dichromate | 季铵纤维素重铬酸盐 |
| polym. | quaternary ammonium charge-transfer complex | 季铵电荷转移络合物 |
| polym. | quaternary ammonium charge-transfer complex | 季铵电荷转移复合物 |
| f.trade. | quaternary ammonium chloride | 杀藻铵 |
| chem. | quaternary ammonium compound | 季钱化合物 |
| chem. | quaternary ammonium compound | 又称四级铵化合物 |
| oil, chem. | quaternary ammonium compound | 季铵化合物 |
| met. | quaternary ammonium compound | 季铵化合物 (R4‧n‧x) |
| oil | quaternary ammonium compound | 季胺化合物 |
| dermat. | quaternary ammonium compound | 四价氨化合物 |
| oil | quaternary ammonium compound | 季接化合物 |
| agric. | quaternary ammonium compound | 四级铵化合物 |
| earth.sc. | quaternary ammonium compounds | 季铵化合物 |
| chem. | quaternary ammonium fluorosilicate | 氟硅酸季铵盐 |
| chem. | quaternary ammonium halide | 季铵卤化物 (R₄NX) |
| chem. | quaternary ammonium hexafluorosilicate | 六氟硅酸季铵盐 |
| chem. | quaternary ammonium hydrate | 季铵碱 (R₄NOH) |
| chem. | quaternary ammonium hydroxide | 氢氧化季铵 |
| agric. | quaternary ammonium hydroxide | 季铵碱 |
| plast. | quaternary ammonium ion exchange resin | 季铵型离子交换树脂 |
| chem. | quaternary ammonium montmorillonite | 季铵蒙脱石 |
| chem. | quaternary ammonium nitrate | 硝酸季铵盐 |
| chem. | quaternary ammonium pentachlorophenate | 五氯苯酚季铵盐 |
| chem. | quaternary ammonium perchlorate | 高氯酸季铵盐 |
| oil | quaternary ammonium polymer | 季接聚合物 |
| chem. | quaternary ammonium polymer | 季铵盐聚合物 |
| chem. | quaternary ammonium polymetaphosphate | 聚偏磷酸季铵盐 |
| met. | quaternary ammonium polystyrene resin | 季铵聚苯乙烯树脂 |
| oil | quaternary ammonium salt | 季接盐 |
| oil, chem. | quaternary ammonium salt | 季铵盐 |
| tech. | quaternary ammonium salt agent | 季铵盐药剂 |
| water.res., ecol. | quaternary ammonium salt cationic polyelectrolyte | 季铵盐阳离子型聚电解质 |
| tech. | quaternary ammonium salt cationic polyelectrolyte | 季铵阳离子型聚电解质 |
| water.res., ecol. | quaternary ammonium salt cationic surfactant | 季铵盐阳离子型表面活性剂 |
| oil, chem. | quaternary ammonium salt surfactant | 季铵盐型表面活性剂 |
| chem. | quaternary ammonium softener | 季铵型柔软剂 |
| oil | quaternary ammonium starch | 季接型淀粉 |
| met. | quaternary ammonium strong base type resin | 季铵强碱型树脂 |
| chem. | quaternary ammonium sulfate | 硫酸季铵盐 |
| tech. | quaternary ammonium surfactant | 季铵表面活性剂 |
| chem. | quaternary ammonium thiocyanate | 硫代氰酸季铵盐 |
| tech. | quaternary ammonium type resin | 季铵型树脂 |
| met. | quaternary ammonium-type resin | 季铵型树脂 |
| chem. | quaternary arsenical compound | 季砷𬭩化合物 (R₄AsX) |
| chem. | quaternary arsenical compound | 季砷合物 |
| chem. | quaternary arsonium compound | 季砷𬭩化合物 |
| chem. | quaternary arsonium compound | 季钟化合物 |
| geol. | Quaternary basalts | 第四纪玄武岩 |
| chem. | quaternary base | 季碱 |
| geol. | Quaternary bench | 第四纪阶地 |
| chem. | quaternary borohydride | 硼氢化季盐 |
| el. | quaternary buried heterostructure | 四元隐埋异质结构 |
| tech. | quaternary carbon atom | 季碳原子 |
| chem. | quaternary cationic surfactant | 季铵盐类阳离子表面活性剂 |
| chem. | quaternary cationics | 季铵盐阳离子表面活性剂 |
| el. | quaternary center | 四级中心站 |
| genet. | quaternary chromosome structure | 染色体四级结构 |
| genet. | quaternary chromosome structure model | 染色体四级结构模型 |
| desert. | Quaternary climate | 第四纪气候 |
| space | quaternary code | 四元码 |
| space | quaternary code | 四进制码 |
| oil | quaternary compound | 四元化合物 |
| oil | quaternary compound | 季化合物 |
| polym. | quaternary copolymer | 四元共聚物 |
| chem. | quaternary copolymer | 季铵共聚物 |
| earth.sc. | quaternary cover | 第四纪覆盖层 |
| geol. | Quaternary cover | 第四纪盖层 |
| met. | quaternary crushing | 四次破碎 |
| bridg.constr. | Quaternary deposit | 第四纪沉积层 |
| geotech. | quaternary deposit | 第四纪沉积物 |
| eng.geol. | Quaternary deposit | 第四纪沉积物 |
| tech. | Quaternary deposit | 第四纪沉积 (物) |
| chem. | quaternary detergent | 季铵盐类洗涤剂 |
| met. | quaternary diagram | 四元相图 |
| met. | quaternary diagram | 【金】四元相图 |
| steel. | quaternary diagram | 四元系状态图 |
| tech. | quaternary diagram | 四相图 |
| telecom. | quaternary digital group | 数字四次群 |
| met. | quaternary electrolyte | 四成分电解质 |
| met. | quaternary electrolyte | 四元电解质 |
| space | quaternary encoding | 四进制编码 |
| bridg.constr. | Quaternary era | 第四纪 |
| tech. | Quaternary eustatic movement | 第四纪海面升降运动 |
| met. | quaternary eutectic alloy | 四元共晶合金 |
| met. | quaternary eutectic alloy | 铋锡铅镉易熔合金 (13.1Sn, 49.5Bi, 27.3Pb, l0.1Cd;熔点 70°C) |
| tech. | quaternary eutectic alloy | 铋锡铅镉易熔四元合金 |
| met. | quaternary excess free-energy | 四元过量自由能 |
| plast. | quaternary exchange resin | 四组分离子交换树脂 |
| chem. | quaternary exchange resin | 四组分离子交换树脂 |
| polym. | quaternary exchanger resin | 季铵盐离子交换树脂 |
| tech. | quaternary facies analysis | 第四系相分析法 |
| earth.sc. | quaternary fans | 第四纪扇形地 |
| geol. | Quaternary fans | 第四纪冲积扇 |
| tech. | Quaternary fault | 第四纪断层 |
| earth.sc. | quaternary fission | 四分核裂变分裂 |
| oil | quaternary gain | 四进制增益 |
| oil | Quaternary geoanticline | 第四纪地背斜 |
| tech. | quaternary geochronologic scale | 第四纪地质年代表 |
| tech. | quaternary geochronological scale | 第四纪地质年代表 |
| cryo. | Quaternary Geochronology | 第四纪地球年代学 (英国) |
| tech. | quaternary geologic profile | 第四纪地质剖面图 |
| geotech. | quaternary geological map | 第四纪地质图 |
| tech. | quaternary geological profile | 第四纪地质剖面图 |
| bridg.constr. | quaternary geology | 第四纪地质 |
| geotech. | quaternary geology | 第四纪土质学 |
| desert. | Quaternary geology | 第四纪地质学 |
| eng.geol. | Quaternary geology map | 第四纪地质图 |
| tech. | Quaternary geology mapping | 第四纪地质测绘 |
| eng.geol. | Quaternary geology sediment | 第四纪沉积物 |
| chem. | quaternary germicidal surfactant | 季铵型杀菌性表面活性剂 |
| geogr. | Quaternary glacial | 第四纪冰期 |
| tech. | Quaternary glacial stage | 第四纪冰期 |
| eng.geol. | Quaternary glaciation | 第四纪冰期 |
| oil | Quaternary glaciation | 第四纪冰川作用 |
| tech. | Quaternary glaciation | 第四纪冰川 (作用) |
| geotech. | quaternary glacier | 第四纪冰川 |
| tech. | quaternary halide | 卤化季盐 |
| agric. | quaternary hybrid | 四祖杂种 |
| desert. | Quaternary ice age | 第四纪冰期 |
| consult. | quaternary industry | 第四产业电脑、咨询 |
| cryo. | Quaternary International | 国际第四纪杂志 (英国) |
| tech. | quaternary ionisation | 四级电离 |
| geol. | Quaternary landslide deposits | 第四纪滑坡堆积 |
| mech.eng. | quaternary link | 四接头杆 |
| tech. | quaternary link | 四件运动链 |
| tech. | quaternary liquid system | 四元液体系统 |
| desert. | Quaternary loess | 第四纪黄土 |
| desert. | Quaternary loess of China | 中国第四纪黄土 |
| el. | quaternary matrix | 四元矩阵 |
| tech. | quaternary mix | 四元配料 |
| tech. | quaternary mixture | 四元混合物 |
| tech. | quaternary monocrystalline diffractometer | 四圆单晶衍射仪 |
| tech. | quaternary monocrystalline diffractometer method | 四圆单晶衍射仪法 |
| chem. | quaternary morpholinium alkyl sulfate | 季铵化吗啉硫酸烷基酯盐 |
| tech. | quaternary multiplication | 四进制乘法 |
| chem. | quaternary myristoylcholine chloride | 季铵化肉豆蔻酰胆碱氯化物 |
| earth.sc. | Quaternary-Neogene Basalts | 第四纪-晚第三系玄武岩 |
| chem. | quaternary nicotinium sulfate | 季铵化烟碱硫酸盐 |
| chem. | quaternary nitrogen | 季铵氮 |
| IT | quaternary notation | 四进制记数法 |
| tech. | quaternary number | 四进制数 |
| tech. | quaternary number system | 四进制数系 |
| geol. | Quaternary older alluvium and colluviums | 第四纪老冲积层和崩积层 |
| agric. | quaternary parasite | 四重寄生 |
| tech. | quaternary parasite | 四重寄生物 |
| geol. | Quaternary period | 第四纪〔系〕 |
| hydroel.st. | Quaternary Period | 第四纪 |
| geol. | Quaternary period | 第四纪系 (system) |
| tech. | quaternary phase equilibria | 四相平衡 |
| IT | quaternary phase shift keying | 四相移相键控 |
| IT | quaternary phase-shift keying | 四相相移键控 |
| el. | quaternary phase-shift keying | 四相移相键控又称 QPSK |
| chem. | quaternary phosphine | 季膦 (R₄PX) |
| water.res., ecol. | quaternary phosphonium | 季膦 |
| chem. | quaternary phosphonium | 季磷 |
| chem. | quaternary phosphonium compound | 季𬭩化合物 |
| chem. | quaternary phosphonium compound | 季磷𬭩 化合物 |
| chem. | quaternary phosphonium compound | 季磷化合物 |
| chem. | quaternary phosphonium compound | 季磷𬭩化合物 |
| chem. | quaternary phosphonium hydroxide | 氢氧化季辚 (R₄POH) |
| chem. | quaternary phosphonium hydroxide | 季辚碱 |
| chem. | quaternary phosphonium hydroxide | 季磷碱 |
| geol. | Quaternary playa | 第四纪干盐湖 |
| genet. | quaternary protein structure | 蛋白质四级结构 |
| agric. | quaternary protein structure | 蛋白质的四级结构 |
| chem. | quaternary pyridinium resin | 吡啶𬭩盐树脂 |
| chem. | quaternary pyridinium resin | 季吡啶 𬭩盐树脂 |
| chem. | quaternary pyridinium salt | 吡啶𬭩盐 |
| chem. | quaternary pyridinium salt | 季吡啶 𬭩盐 |
| ecol. | quaternary red soil | 第四纪红黏土 |
| geol. | Quaternary research | 第四纪研究 |
| desert. | Quaternary research | 第四纪学 |
| cryo. | Quaternary Research | 第四纪研究 (美国) |
| gen. | Quaternary Research | 第四纪研究美 |
| earth.sc. | Quaternary Research Association | 第四纪研究协会 |
| geol. | Quaternary Research Association | 美国第四纪研究协会 |
| earth.sc. | Quaternary Research Laboratory | 第四纪研究实验室 |
| tech. | quaternary salt | 季盐 |
| tech. | quaternary sampling | 四分采样法 |
| cryo. | Quaternary Science Reviews | 第四纪科学评论 (英国) |
| cryo., China | Quaternary Sciences | 第四纪研究 |
| met. | quaternary screening | 四次筛分 |
| geogr. | Quaternary sea level change | 第四纪海平面变化 |
| oil | quaternary sediment | 四元沉积物 |
| hydroel.st. | Quaternary sediment | 第四系沉积物 (deposit) |
| oil | quaternary sediment | 四组分沉积物 |
| tech. | Quaternary sediment | 第四纪沉积 (物) |
| desert. | Quaternary sediment | 第四纪沉积物 |
| tech. | quaternary sedimentary type | 第四系沉积类型 |
| tech. | Quaternary sedimentation | 第四纪沉积作用 |
| telecom. | quaternary signaling | 四元信号传输法 |
| IT | quaternary signaling | 四元信号 |
| telecom. | quaternary signaling | 四元通信 |
| tech. | quaternary signalling | 四元通信 |
| agric. | Quaternary soil | 第四纪层土［壤］ |
| met. | quaternary steel | 四元合金钢 |
| met. | quaternary steel | 四组分钢 |
| met. | quaternary steel | 四元合金钢 |
| chem. | quaternary stibonium hydroxide | 氢氧化率锑 |
| chem. | quaternary stibonium hydroxide | 季锑碱 |
| chem. | quaternary stibonium hydroxide | 氢氧化季锑 (R₄SbOH) |
| chem. | quaternary stibonium hydroxide | 季僦碱 |
| desert. | Quaternary strata | 第四纪地层 |
| life.sc. | quaternary structure | 四级结构 |
| sport., med. | quaternary structure | 4级结构 |
| genet. | quaternary structure of nucleic acid | 核酸的四级结构 |
| anim.husb. | quaternary structure of protein | 蛋白质四级结构 |
| agric. | quaternary structure of protein | 蛋白质的四级结构 |
| desert. | Quaternary studies | 第四纪学 |
| geol. | Quaternary surfacial deposits | 第四纪表层沉积 |
| chem. | quaternary surfactant | 季铵盐表面活性剂 |
| agric. | quaternary surfactant | 季铵表面活性剂 |
| earth.sc. | quaternary surficial deposits | 第四纪地表沉积 |
| tech. | quaternary system | 四元制 |
| tech. | quaternary system | 四元体系 |
| hydroel.st. | Quaternary System | 第四系 |
| tech. | quaternary system | 四个一组系统 |
| chem. | quaternary system | 四元系统 |
| met. | quaternary system | 四元系 |
| tech. | quaternary system | 四进制 |
| agric. | quaternary system | 第四系｛土壤｝ |
| tech. | Quaternary system | 第四系【地】 |
| geol. | Quaternary System | 第四纪〔系〕 |
| tech. | quaternary system phase diagram | 四元相图 |
| agric. | quaternary system soil | 第四［纪］系土壤 |
| chem. | quaternary systems | 四元系 |
| geol. | Quaternary talus | 第四纪山麓堆积 |
| tech. | quaternary thickness analysis | 第四系厚度分析法 |
| el. | quaternary-to-analog converter | 四进制数字-模拟转换器 |
| tech. | quaternary treatment | 四级处理 |
| agric. | quaternary vein | 四级脉 (nervus quaternaris) |
| desert. | Quaternary volcanic rocks | 第四纪火山岩 |
| desert. | Quaternary volcano | 第四纪火山 |
| el. | reduced bandwidth quaternary phase shift keying | 压缩带宽四相移相键控 |
| earth.sc. | South African Society for Quaternary Research | 南非第四纪研究学会 |
| tech. | stage of quaternary system | 第四纪分期 |
| tech. | strata of quaternary period | 第四纪地层 |
| tech. | stratigraphic correlation of quaternary system | 第四纪地层对比 |
| tech. | stratigraphical correlation of quaternary system | 第四纪地层对比 |
| plast. | styrene system quaternary ammonium type I strongly basic anion exchange resin | 苯乙烯系强碱性季铵 I 型阴离子交换树脂 |
| tech. | succession of quaternary system | 第四层序 |
| tech. | survey of quaternary system | 第四系地质调査 |
| earth.sc. | tertiary and quaternary | 第三纪和第四纪 |
| geol. | Tertiary and Quaternary | 第三纪 【系】和第四纪【系】 |
| geol. | Tertiary and Quaternary sediments | 第三纪和第四纪沉积物 |
| earth.sc. | tertiary-quaternary | 第三纪-第四纪 |
| water.res., ecol. | traditional mono-quaternary ammonium salt bactericide | 传统单季铵盐杀菌剂 |
| el. | two-binary, one-quaternary | 两个二进制一个四进制编码方案 |
| space | unbalanced quaternary phase shift keying | 非平衡四相相移键控 (一种传输波的开关式调制方式) |