半自动双缸洗衣机
semi-automatic washer-dryer
往复式双缸泵
reciprocating duplex pump
双缸往复泵
duplex reciprocating pump
QC quality control
双缸同步误差
bi-cylinders＇synchronous errors
双缸同步
double cylinder synchronism
双缸锁定阀
double cylinder lock valve
双缸式蒸汽机
two cylinder steam engine
双缸泥浆泵
double cylinder slip pump
双缸灰浆泵
dual cylinder mortar pump
双缸隔膜泵
double cylinder diaphragm pump
双缸复动泵
duplex double acting pump