例句
Filling the cylinder with steam pushes the piston out.
填充汽缸的蒸汽将活塞推出。
The new series also includes a piston design that makes digressive forces for added pitch and roll control. This helps with performance over rough terrains and on off-road surfaces.
新系列还包括一个活塞设计，它可降低阻力，增加间距和滚转控制，这有助于军用车辆在崎岖的地形和越野路面的表现。