reciprocating

往复运动的,来回或上下移动的。

That moves back and forth or up and down.

往复式的,指有一个或多个活塞来回或上下移动的发动机。

Of an engine type, that has one or more pistons that move back and forth or up and down.

往复式的,指其机制依赖来回或上下运动的机器。

Of an other machine, whose mechanism relies on a back and forth or up and down motion.

回报的,指人或其行为以同样方式回应。

Of a person or their actions, responding in kind.