| 例句 |
Without a cough in warning, the pistons simply stopped.活塞连噗的一声征兆也未发出就这么停了。The pistons are graphite coated to reduce friction.活塞上涂了一层石墨以减小摩擦。The pistons no longer fitted and a complete overhaul was needed.活塞不合适了，需要进行一次全面的大修。The pistons are graphite-coated to reduce friction.活塞上涂了一层石墨以减小摩擦力。 |