| Subject | English | Chinese |
| gen. | A class | A〔第一〕级 |
| tech. | A class | 甲级 |
| econ. | A class | 头等 |
| gen. | A class | 第一流 |
| archit. | A first class | 头等 |
| econ. | A class | 第一等 |
| auto. | A class | A 级详见附录 |
| auto. | A class car | A 级车详见附录 |
| gen. | A class division | 耐火〔第一级〕区间 |
| nautic., tech. | A class divisions | A 级分隔 |
| nautic., tech. | A class fire proof door | 甲级防火门 |
| nautic., tech. | A class inflammable gas | A 级易燃气体 |
| polygr. | A class liner | 级衬纸 |
| shipb. | A class of making quality | 头等加工质量 |
| shipb. | A class of ship products | 头等船舶产品 |
| shipb. | A class quality | 头等质量 |
| gen. | a continuation class | 业余补习班 |
| nautic., tech. | A or B class standard fire test | A/B 级标准耐火试验 |
| econ. | a two-class method of computing earning per share | 计算每股收益的两类法 |
| nautic., tech. | "A"class division | "A" 级耐火分隔 |
| textile | A-class goods | 正品 |
| el.mach. | A-class insulation | A 级绝缘 |
| row. | A-division catamaran class | A 间段筏型 |
| China, law | admit to study in a regular class | 随班就读 |
| avia. | airspace class A | A 类空域 (只允许进行仪表飞行规则 (IFR )飞行的空域。所有飞行均服从于空中交通管制服务的调配，并且彼此分离。通常只存在于交通较为繁忙的机场。在美国，通常为平均海平面高度 (MSL )以上 18 000ft 至飞行高度层 (FL)600的空域范围。A类空域在美国航图中不特别标出，但在其他一些国家会特别标出。以前称 PCA或 positive control area (积极控制区)) |
| IT | bearer class A | 承载类型 A |
| textile | class A | 甲类 |
| textile | class A | 甲等 |
| textile | class A | A级 |
| textile | class A | A类 |
| textile | class A | 甲级 |
| drag. | class A | 甲组 |
| tech. | class A amplification | 甲类放大 |
| el. | class A amplifier oscillations | A级放大器振荡 |
| China, law | Class A and Class B infectious diseases of animals | 一类、二类动物传染病 |
| IT | class A certification | A 级保证 |
| telecom. | Class A certification | A 级合格证美 FCC 的计算机射频干扰 A 级限制 |
| textile | class A common stock | A类普通股 |
| textile | class A common stock | 甲类普通股 |
| busin. | class A common stock | A 类普通股 |
| securit. | Class A common stock | A甲类普通股 |
| tech. | class A design institute | 甲级设计院 |
| busin. | class A directors | 甲类理事 |
| nautic., tech. | class A-15 divisions | A-15 级防火分隔 |
| nautic., tech. | class A-30 divisions | A-30 级防火分隔 |
| nautic., tech. | class A-60 divisions | A-60 级防火分隔 |
| nautic., tech. | class A-0 divisions | A-0 级防火分隔 |
| tech. | class A evaporation pan | A 型蒸发器 |
| tech. | class A evapouration pan | A 型蒸发器 |
| expl. | class A explosives | A类爆炸物由美国运输部确定的,具有爆炸性或者是巨大危害的炸药，诸如达纳迈特、叠氮化铅、爆破雷管和起爆药等 |
| cartogr. | class A film | A类胶卷 |
| tech. | class A fire | 甲类火 |
| nautic., tech. | class A fire divisions | A 级防火分隔 |
| exhib. | class A forwarder | 一级代理 |
| telecom. | class A function | MML 功能用户能通过 MML 输人和输出来控制系统功能 |
| telecom. | class A function | A 类功能 |
| busin. | class A inspection | A 级检验 |
| el. | class AB,C,E,F, H,O insulating material | AE;C;D;E;F;H;O级绝缘材料 |
| tech. | class A insulation | A 级绝缘 |
| tech. | class A investigation and design institute | 甲级勘察设计院 |
| IT | class A IP address | A 类 IP 地址 |
| comp., net. | class A IP address | A 类 IP地址 |
| tech. | class A land evaporation pan | A 型陆上蒸发器 |
| tech. | class A land evapouration pan | A 型陆上蒸发器 |
| tech. | class A land pan | A 型陆上蒸发器 |
| IT | class A modulator | A 类调制器 |
| proj.manag. | class A network | A 类网 |
| IT | class A network | A 类网络 |
| telecom. | class A network | A 级网络能分配多达 16 777 215个因特网地址 |
| IT | class A network address | A 类网址 |
| el. | class A operation | A类工作状态 |
| water.res., ecol. | class A oxidation ditch | A 型氧化沟 |
| oil | class A Portland cement | A级波特兰水泥 |
| tech. | class A power amplifier | 甲类功率放大器 |
| tech. | class A ship | 甲类船 |
| tech. | class A signal area | 强电视信号区 |
| busin. | class A stock | A 类股 |
| securit. | Class A stock | A甲类股票 |
| busin. | class A telegram | A 级电报 |
| textile | class A telephone | 甲类电话 |
| textile | class A telephone | A类电话 |
| auto. | class A thread | 外螺纹 (external thread) |
| adv. | Class A time | 黄金时段 |
| space | class A war | 高强度战争 |
| railw. | class A water source protection zones | 一级水源保护区 |
| IT | class A,B,C address A、B | 和 C 类地址 |
| auto. | class number of a vehicle | 车辆分类号 |
| gen. | class of a curve | 曲线的类 |
| tech. | class with respect to a module | 关于一模的类 |
| IT | class-A amplify | 甲类放大 |
| gen. | class-A push-pull | 甲类推挽 |
| weightlift. | compete in a heavier class | 越级参加比赛 |
| weightlift. | compete in a lighter class | 降级参加比赛 |
| busin. | equity class A | 无投票权股票 |
| gen. | have a class | 上课 |
| gen. | I have reserved a seat in the economy-class cabin | 我已预订了一个经济舱座位 |
| gen. | I want to reserve a berth of second class cabin | 我要预订一个二等舱的铺位 |
| gen. | I will buy a first class open return | 我要买一张一等舱不定期往返机票 |
| gen. | If you need to make a change in flight, date or class after you purchase your ticket, please notify us as soon as possible and we will take the appropriate action | 您购票后，如果要求变更航班、日期、舱位等，请尽早通知我们，以便我们进行合理处理 |
| gen. | in a class by itself | 特好 |
| gen. | in a class by itself | 独一无二 |
| gen. | in a class by itself | 独具一格 |
| gen. | in a class by itself | 出众 |
| gen. | in a class by oneself | 特好 |
| gen. | in a class by oneself | 独具一格 |
| gen. | in a class by oneself | 独一无二 |
| gen. | in a class by oneself | 出众 |
| China, law | infectious diseases under Class A | 甲类传染病 |
| wrest. | International Class A Wrestling Grand Prix | 国际 A 级摔跤大奖赛 |
| proj.manag. | It is possible for the name of a property or method in a generated class to be a keyword in the target programming language | 生成的类中的属性或方法的名称可能是目标编程语言的关键字 |
| proj.manag. | One way to ensure this is to design a class that encapsulates the shared resource | 确保做到这一点的一种方法是设计一个封装该共享资源的类 |
| textile | percentage of A-class goods | 正品率 |
| auto. | percentage of A-class goods | 正A 级品率 |
| tech. | percentage of class A goods | 正品率 |
| China, law | scope of A Class infectious diseases | 甲类传染病的范围 |
| China, law | take a higher class berth than booked | 越级乘船 |
| nautic., tech. | thermal insulating materials, i. e. class "A-60" insulation materials | 隔热材料，如"A-60"级分隔隔热材料 |
| sport. | They are having a training class now | 他们正在上训练课 |
| sport. | World class hammer throwers hurl the hammer nearly the length of a football field | 世界级的链球运动员将链球掷出的距离几乎与一个足球场的长度差不多 |
