Install this plugin sources in your vendor/plugins directory (it could be ./script/plugin install, or piston import command - it is up to you) from our SVN reposipory. For example

将该插件代码从我们的SVN库中安装到vendor/plugins目录中（可以使用./script/plugin install安装，或者piston import命令进行安装——看你喜欢）例如

youdao

Air and fuel are drawn into the cylinder by the downward movement of the piston, the piston then moves up and squeezes this mixture which is then ignited.

空气和燃料，是由各该活塞向下运动，活塞然后移动起来，这是挤出，然后点燃混合气进入气缸。

youdao

The piston is a cylindrical shaped hollow part that moves up and down inside the engine cylinder.

活塞是一个中空的圆柱体形状部件，其在发动机气缸里做上下往复运动。

youdao

And so what happens when we remove these stops is that the piston slams up against the next pair of stops.

把挡板移开后活塞会,向上移动直道第二个挡板处。

麻省理工公开课 - 热力学与动力学课程节选

So we remove the stops, and the piston moves up, and now we remove one of these weights.

我们移走挡板，活塞向上移动，移走一个重物。

麻省理工公开课 - 热力学与动力学课程节选

So, the piston moves up again, one weight.

活塞再次上升。

麻省理工公开课 - 热力学与动力学课程节选

Conventional four-stroke engines produce power by moving a piston up and down using rapid explosions of fuel and air in a cylindrical chamber.

FORBES: How to get 51mpg from an engine the size of a large turkey.

Its Variable Compression Engine can alter its compression ratio (the volume in a cylinder when the piston is up compared with the volume when it is down) from 14-1 to 8-1, depending on the circumstances.

ECONOMIST: Fuel economy

This may surprise nonpilots, but cranking up airplane engines--whether piston, turboprop or jet--has always been multistepped.

FORBES: Flying Eclipse's Pocket Jet