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duplex radio communication
duplex radio telephony
duplex radiophone
duplex receptacle outlet
duplex reciprocating pump
duplex refiner
duplex register
duplex regulator
duplex release valve
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duplex reciprocating pump
➞
duplex reciprocating pump
Definitions
[1]
[化]
双缸往复泵
[2]
[医]
双筒往复泵
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duplex reciprocating pump