switch grease

• 电闸润滑脂

switch grease的用法和样例：

例句

1. The switch completes the circuit when you close it.
   当你合闸时，电闸把电路接通了。
2. He pressed the switch and all the lights on the switch and all the lights on the threshing ground flashed on together.
   他扳下电闸，打谷场上的灯一下子全亮了。