中凸型活塞裙部  barrel-shaped piston skirt

活塞裙部型线  piston skirt profile; Molded line of piston skirt; piston skirt molded lines

活塞裙部型线研究  Study of Piston Skirt Profile

活塞裙部  piston skirt; skirt of piston; Piston skirt cross-section

活塞裙部挤扁  collapse of piston skirt

大中型型钢轧机  heavy and medium section mill

中部中节的  metacentric

中型H型钢  medial size H-beam

中型活顶尖  middle type live center

中型型钢  medium shape

中型型钢轧机  medium section mill

活塞凸台  piston projection

活塞凸台高度  piston projection height

活塞型面设计方法  piston profiling method

活塞型雨淋阀  piston deluge valve

扭转环型活塞  keystone style piston

裙部型面  piston skirt curve

筒型活塞引擎  Trunk piston engine oil

筒状活塞型柴油机  trunk piston type diesel engine

微型活塞  microstopcock