radial multiple piston type of pump 径向多活塞式泵...radial piston pump 径向活塞泵...acid-resistant ceramic liquid-piston rotary vacuum pump 耐酸陶瓷水环真空泵...labyrinth piston compressor 迷宫活塞式压缩机...washer for air piston 空气活塞垫圈...balancing piston 平衡活塞...air piston 空气活塞...cylindric piston water meter 筒式活塞水表...trunk piston 筒式活塞;裙式活塞...piston n.活塞,活塞阀键活塞(如注射...balance piston 平衡活塞...box-type piston 箱形活塞...multiple-piston rotary pump 多活塞回转泵...circular piston 圆活塞...application piston 作用活塞...reciprocating piston pump 往复式活塞泵...cup leather for balance piston 平衡活塞皮碗...rubber follower for balance piston 平衡活塞橡皮环...duplex steam piston pump 双缸蒸汽往复泵...built-up piston 组合活塞...duplex piston pump 双缸活塞泵...
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