“活塞”的拼音？

“活塞”的英语可以翻译为：plunger，stop，bibb cock，bib(b)，piston ...

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....