【机械工程】多缸水压式交互活塞发动机【机械工程】多汽缸往复式活塞发动机，静水的

multi-cylinder engine

multi-cylinder long mesh paper machine

multi-cylinder pump

reciprocating-piston machine, multi-cylinder pump of reciprocating-piston type

multi-cylinder pump【机】

multi-cylinder fuel injection pump【动力】

multi-cylinder turbine

multi-cylinder engine