“活塞”造句

活塞上涂了一层石墨以减小摩擦力。
The pistons are graphite-coated to reduce friction.

咱们用车床车[加工]新的活塞吧.
Let's get the lathe to turn the new piston.

他们改用活塞发动机.
They use a piston engine instead.

• #活塞