This clock operates off of pneumatics, and it has air cylinders that will extend it out.

这个钟是靠气压运转的，它里面的气缸可以让它伸出来。

I built a pneumatic air cylinder that'll lower a light down to give me the light I need.

我做了一个气动气缸，它可以降下灯，给我需要的光线。