回转式活塞泵 rotary piston pump

回转式柱塞泵 rotary plunger pump

旋转活塞式发动机 rotary engine ; rotary piston engine

旋转活塞式压缩机 [机] rolling piston compressor

插塞式转接器 plug adapter

旋转活塞式气表 rotary piston gas meter

旋转式柱塞泵 rotating plunger pump ; rotary-plunger pump

旋转式活塞 rotating-type piston

活塞式回转泵 piston type rotary pump ; typerctarypump

液体活塞式旋转压气机 [机] liquid piston rotary compressor