名词
中文翻译：Unknown
同义词：
['barrel control', 'barrel handle', 'barrel mechanism']
例句：
-
1. The engineer made a barrel switch to prevent the engine from overheating.
工程师做了一个油桶开关，以防止发动机过热。
-
2. The farmer used a barrel switch to manually start the tractor.
农民使用一个油桶开关手动启动拖拉机。
-
3. The car had a barrel switch that could be used to lock the doors when parked.
这辆车有一个油桶开关，可以在停车时用来锁门。