variable stroke reciprocating pu的意思|示意
美 / /
英 / /
变行程往复pu
variable stroke reciprocating pu的网络常见释义
变形程往复泵 rotative reciprocating pu 曲柄泵 variable stroke reciprocating pu 变形程往复泵 reciprocating pu with unidirectional piston 单向活塞泵 ..