The greatest advantage of this type of piston is its low coefficient of expansion.

这种活塞的最大优点是膨胀系数低。

There are two types of pistons on brass instruments: upright and rotary.

铜管乐器上的阀键有直立式和旋转式两种。

The roar of mighty piston engines is deafening.

强力活塞式发动机的轰鸣声简直震耳欲聋。

The piston is a sliding piece moved by the pressure.

活塞是由压力移动的滑动装置

Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired.

采用弹簧活塞式发射装置，狙击步枪射击时几乎无声。

The piston moves by steam pressure.

活塞在蒸汽压力下运动。

There's my piston right there.

现在我的活塞在这里。

Remove tool from rack piston.

从齿条活塞上拆下工具。

We've got my container, my piston here.

这里是容器和活塞。