| Subject | English | Chinese |
| UN, sl., drug. | Action Plan against Illicit Manufacture, trafficking and Abuse of Amphetamine-type Stimulants and their Precursors | 打击安非他明类及其前体的非法制造，贩运和滥用的行动计划 |
| avia. | aerosol precursor | 气溶胶前体 |
| repr.biol. | amine precursor uptake and decarboxylation APUD | 胺前体摄取及脱羧产生肽类激素和神经递质的细胞，具有共同的生化特性，也就是具有摄取胺的前身、脱去羧基而变成活性胺或活性肽的能力 |
| repr.biol. | amine precursor uptake and decarboxylation APUD | 系统 |
| physiol. | amine precursor uptake and decarboxylation cell | APUD 细胞 (APUD cell) |
| physiol. | amine precursor uptake and decarboxylation cell | 胺前体摄取和脱竣作用细胞 (APUD cell) |
| biol. | amine precursor uptake and decarboxylation system | 简称APUD细胞系统 |
| biol. | amine precursor uptake and decarboxylation system | 胺与胺前体摄取和脱羧细胞系统 |
| sport., physiol. | amine precursor uptake & decarboxylation | 系统 |
| life.sc. | amyloid precursor protein | 淀粉样前体蛋白 |
| agric. | amyloid protein precursor | 淀粉状蛋白前体 |
| repr.biol. | auxin precursors | 生长素前体 |
| ecol. | biological precursor | 生物前体 |
| el. | boron and phosphorus doped oxide deposited using TEOS silicon precursor chemistry | 利用四乙氧基硅烷硅先质的化学性质淀识硼、磷掺杂氧化物 |
| el. | BPSG deposition using TEOS as the precursor | 以四乙氧基硅烷作先质淀积硼磷硅玻璃 |
| life.sc. | burst forming unit-erythroid precursor | 爆式红系祖细胞形成单位 |
| chem. | carbon fibre precursor | 碳纤维原丝 |
| chem. | carbon fibre precursor | 碳纤维母体 |
| chem. | catalyst precursor composition | 催化剂前体成分 |
| chem. | catalyst precursor composition | 催化剂母体成分 |
| textile | cellulose precursor fiber | 纤维素纤维原丝碳纤维原丝 |
| textile | cellulose precursor fiber | 纤维素母体纤维 |
| chem. | ceramic precursor | 陶瓷前体 |
| biol. | common lymphoid precursor | 共同淋巴样前体细胞 |
| el. | countermeasures precursor | 干扰预报器 |
| agric. | cytokinin precursor | 细胞激动素前体 |
| nucl.phys. | delayed neutron precursor | 缓发中子先驱核 |
| el. | delayed neutron precursors | 缓发中子先驱物【核】 |
| earth.sc. | delayed-neutron precursors | 缓发中子的先驱物 |
| UN, sl., drug. | Diversion of precursors | 前体他用 |
| agric. | DNA precursor | DNA 前体 |
| biochem. | dolichol oligosaccharide precursor | 长萜醇寡糖前体 |
| bridg.constr. | earthquake precursor | 地震前兆 |
| tech. | earthquake precursor | 地震先兆现象 |
| space | elastic precursor wave | 弹性前驱波 |
| repr.biol. | enzyme precursor | 酶原 |
| agric. | enzyme precursor | 酶前体 |
| agric. | ethylene precursor | 乙烯前体 |
| agric. | filamentous precursor | 丝状前体 |
| mol.gen. | flavour precursor | 风味前体物质 (分生) |
| agric. | flavour precursors | 芳香族化合物前体 |
| physiol. | granuloid committed precursor cell | 粒系定向干细胞 |
| nautic., tech. | Guidelines for the Prevention and Suppression of the Smuggling, Psychotropic Substances and Precursor Chemicals on Ships Engaged in International Maritime Traffic | 防止和制止从事国际海上运输船舶走私毒品、精神药物和前体化学品指南 |
| agric. | immediate precursor | 直接前体 |
| agric. | intermediate precursor | 中间前体 |
| tech. | labeled precursor | 标记前体 |
| tech. | labelled precursor | 标记前体 |
| forestr. | lignin precursor | 木素原体 |
| forestr. | lignin precursors | 木素母体 |
| pharm. | liposome precursor | 前体月旨质体 |
| el. | liquid precursor delivery system | 液体先质输送系统 |
| tech. | macroscopic precursor | 宏观前兆 |
| textile | mesophase pitch precursor fiber | 中相沥青母体纤维 |
| geol. | methane precursor carbon | 甲烷母体碳 |
| tech. | microscopic precursor | 微观前兆 |
| repr.biol. | milk precursor | 乳的合成物质 |
| repr.biol. | milk precursor | 乳前体物 |
| agric. | monomeric precursor | 单体前体 |
| biochem. | mRNA precursor | mRNA前体 |
| agric. | nuclear precursor | 核前体 |
| agric. | nuclear RNA precursor | 核 RNA 前体 |
| tech. | ozone precursor | 臭氧化前体 |
| oil | petroleum precursor | 生油物种 |
| agric. | phage precursor | 噬菌体前体 |
| tech. | pigment precursor | 色素母体 |
| nurs. | plasma thromboplastin precursor | 血浆凝血活酶前质 |
| el. | polyimide precursor | 聚酰亚胺先质 |
| el. | polyimide precursor | 聚酰亚胺起始化合物 |
| polym. | polymeric precursor | 预聚物 |
| tech. | precursor activity | 前兆活动 |
| space | precursor burst | 先遣爆炸 |
| UN, biol. | Precursor cell | 前导细胞 |
| surg. | precursor cell | 先质细胞 |
| dermat. | precursor cell | 前体细胞 |
| UN, biol. | Precursor cell | 前缀细胞 |
| repr.biol. | precursor cells | 前驱细胞 |
| life.sc. | precursor chain | 前导链 |
| life.sc. | precursor chain | 前导肽 |
| comp. | precursor chain | 前身链 |
| publ.secur. | Precursor chemicals | 前体化学品［制毒原料如盐酸、丙酮、乙醇］ |
| UN, sl., drug. | Precursor chemicals | 化学前体 |
| UN, sl., drug. | Precursor chemicals | 化学先质 |
| UN, sl., drug. | Precursor chemicals | 易制毒化学品 |
| UN, afghan. | precursor chemicals used to produce drugs | 用于生产毒品的化学先质 |
| mol.gen. | precursor cleavage | 前体劈裂 (分生) |
| agric. | precursor cleavage | 前体分裂 |
| construct. | precursor compound | 原〔起〕始化合物 |
| geogr. | precursor compound | 生源物 |
| tech. | precursor compound | 初始化合物 |
| UN, sl., drug. | Precursor Control Unit | 化学先质管制股 |
| tech. | precursor conversion | 母体转化法 |
| tech. | precursor effect | 前兆效应 |
| nucl.phys. | precursor electron | 先驱电子 |
| market. | precursor events | 先兆事件法 |
| eng.geol. | precursor fault | 初始断层 |
| eng.geol. | precursor fault | 前兆断层 |
| textile | precursor fiber | 母体纤维生产碳纤维的原料纤维，例如聚丙烯腈纤维 |
| tech. | precursor fiber | 母体纤维 |
| el. | precursor fission product | 前驱裂变产物【核】 |
| mater.sc. | precursor for diamond film deposition | 金刚石薄膜沉积前驱体 |
| tech. | precursor gas of ozone | 臭氧的气体前体 |
| market. | precursor indicators | 先兆事件法 |
| chem. | precursor ion | 母离子 |
| mol.gen. | precursor ion | 先驱离子 (分生) |
| chem. | precursor ion | 先驱离子 |
| agric. | precursor ion | 前体离子 |
| space | precursor jamming | 先行干扰 |
| tech. | precursor model | 前兆模式 |
| agric. | precursor molecule | 前体分子 |
| agric. | precursor mRNA | 前体信使RNA (pre-mRNA) |
| anim.husb. | precursor mRNA | 前信使 RNA |
| agric. | precursor mRNA | 前体信使 RNA |
| genet. | precursor mRNA | 前信使 RNA (前体 mRNA) |
| life.sc. | precursor mRNA | 前体 mRNA, 前信使 RNA |
| agric. | precursor mRNA | 前体 mRNA (pre-mRNA) |
| chem. | precursor nuclide | 前驱核素 |
| el. | precursor of accidents | 事故先兆 |
| el. | precursor of accidents | 事故前兆 |
| expl. | precursor of emulsion explosive | 乳化炸药前体 |
| agric. | precursor of vitamin A | 维生素 A 原 |
| tech. | precursor phenomenon | 前兆现象 |
| tech. | precursor pollutant | 前体污染物 |
| polym. | precursor polymer | 前体聚合物 |
| tech. | precursor polymer | 母体聚合物 |
| chem. | precursor-product relation | 母体-子体关系 |
| chem. | precursor-product relation | 前身-产物关系 |
| agric. | precursor protein | 前体蛋白 |
| tech. | precursor pulse | 前兆脉冲 |
| tech. | precursor pulse | 先行脉冲 |
| scient. | precursor radiation | 前驱辐射 |
| nucl.phys. | precursor reactor | 前驱反应堆 |
| life.sc. | precursor ribosomal RNA | 前核糖体 RNA |
| life.sc. | precursor ribosomal RNA | 前体rRNA |
| anim.husb. | precursor RNA | RNA 先驱物 |
| anim.husb. | precursor RNA | 前 RNA |
| agric. | precursor RNA | 前体 RNA |
| genet. | precursor RNA processing | 前体 RNA 加工 |
| genet. | precursor RNA processing protein | 前体 RNA 加工蛋白 |
| genet. | precursor rRNA | 前核糖体 RNA (前体 rRNA) |
| astr. | precursor star | 前身星 |
| anim.husb. | precursor substance | 先质 |
| anim.husb. | precursor substance | 前身物质 |
| anim.husb. | precursor substance | 产物母体 |
| dermat. | precursor syndrome | 前体综合征 |
| space | precursor time | 前兆时间 |
| genet. | precursor tRNA | 前转移 RNA (前体 tRNA) |
| genet. | procaryotic precursor RNA | 原核生物前体 RNA |
| nucl.phys. | radioactive precursor | 母质 |
| met. | rapid solidified precursor | 速凝先凝物 |
| met. | rapid solidified precursor | 快速凝固先凝物 |
| genet. | ribosomal precursor RNA | 核糖体前体 RNA |
| agric. | ribosomal precursor RNA | 核糖体前 RNA |
| agric. | ribosomal precursor RNA | 核糖体前体RNA |
| agric. | ribosomal RNA precursor | rRNA 前体 |
| agric. | ribosomal RNA precursor | 核糖体 RNA 前体 |
| agric. | ribosomal RNA processing of precursor | rRNA 前体加工 |
| agric. | ribosomal RNA processing of precursor | 核糖体 RNA 前体加工 |
| agric. | ribosomal RNA tRNA in precursor | 核糖体 |
| agric. | RNA precursor | RNA 前体 |
| agric. | RNP precursor | RNP 前体 |
| space | robotic precursor system | 机器人先遣系统 |
| tech. | seismic precursor | 地震前兆 |
| agric. | simple precursor | 简单前体 |
| chem. | soluble ionic precursor | 水溶性离子母体 |
| mol.gen. | soluble precursor | 可溶前体 |
| anim.husb. | specific precursor | 特异性前体细胞 |
| agric. | tannin and tannin precursor | 单宁与单宁前体 |
| agric. | transfer RNA precursor | 转移 RNA 前体 |
| agric. | tRNA precursor | tRNA 前体 |
| chem. | ultimate precursor | 终极前体 |
| chem. | ultimate precursor | 极限前体 |
| el. | unmanned precursor vehicle | 不载人先遣飞行器 |
| biol. | vitamin A precursor | 维生素A前体 |
| anim.husb. | vitamin precursor | 维生素原 |
| anim.husb. | vitamin precursor | 维生素前体物 |
| agric. | yeast rRNA precursor processing | 酵母 rRNA 前体加工 |