| Subject | English | Chinese |
| auto. | engine code | 发动机代码表示发动机类型和制造厂家 |
| auto. | engine history code | 发动机历史码 (ABS history code 防抱死制动系统历史码) |
| auto. | engine test code | 验规范 |
| auto. | fault code of engine output terminal | 发动机故障码输出端子 |
| nautic., tech. | technical code on control of emission of hydrogen oxide from marine diesel engines | 船用发动机氮氧化物 NOx 排放控制技术规则 |