pis
ton
复数形式
pistons
1
活塞, 柱塞
a solid, round part that moves back and forth inside a hollow tube in an engine or machine, helping to push or pull gases or liquids, or to turn pressure into movement
- The piston moves up and down inside the engine.
活塞在发动机内部上下移动。
- Steam pushes the piston to power the machine.
蒸汽推动活塞为机器提供动力。
- The piston turns heat energy into movement.
活塞将热能转化为运动。
- The car engine has several pistons working together.
汽车发动机有几个活塞一起工作。
- A pump uses a piston to move water.
泵使用活塞来移动水。
同义词：