1. 辅助发动机：donkey engine feed pump 辅助发动机添水泵 | donkey engine 辅助发动机 | donkey feed pipe 副添水管
2. 副机：979 直联引擎 direct acting engine | 980 副机 donkey engine | 982 双排缸回转引擎 double rotary engine
3. 轻便发动机：donkey engine 辅助发动机 | donkey engine 轻便发动机 | donkey pump 辅助泵
4. 辅机：donkey engine 辅发动机 | donkey engine 辅机 | donkey feed water pump 辅给水泵
noun
1. (nautical) a small engine (as one used on board ships to operate a windlass)
Synonym: auxiliary engine
2. a locomotive for switching rolling stock in a railroad yard
Synonym: switch engine