1.3.4用流體傳送動力的機器Fluid power machines

There are many machines use a fluid (liquid or gas) to transmit power from one location to another.

生活中有很多機器是利用空氣、油或水等流體來傳送動力。

例如:打氣筒、水車、油壓千斤頂、油壓拖板車、挖土機、汽車的煞車裝置等