piston type pump_机械英汉词典
piston type pump
[机械英汉词典]
piston type pump活塞泵
是什么意思，piston type pump的解释，piston type pump的翻译
活塞泵
piston type pump_机械英汉词典piston type pump
[机械英汉词典]
piston type pump是什么意思，piston type pump的解释，piston type pump的翻译
