【化】 往复式压缩机; 活塞式压缩机

活塞式压缩机计算方法的研究

piston

differential pump (multistage pump, multi-cellular pump, step piston pump)

radial-flow piston machine or pump, variable displacement pump,

combination of rotary-piston pumps with oscillating-piston pumps

resilience piston fuel-injection pump

piston ring combustion engine carrier roller

piston-type accumulator

piston land