hollow piston 中文意思是什麼
hollow piston
解釋
空心活塞-
Perry's slingshot device consisted of a fast moving hollow piston or capsule which contained the test section gas.
培里的彈射裝置由一個快速運動的中空活塞或密封容器組成,其中包含試驗用的氣體。 -
Comprising a hollow metal - ball with orifices. the ball is joined to piston and cylinder. press the piston, water jets out of the orifices in all directions
由一個空心有孔金屬球和活塞筒組成。壓下活塞可以看到水嘴的水向四面八方噴射。
分享友人