您要查找的是不是：
- 双管微电极double-barelled microelectrode
- 双pair
- 管pipe
- 双管枪doublebarrel
- 双管绡brocade georgette
- 双管悬挂器dual tubing hanger
- 双管围油栏double tubed containment boom
- 双管程double tube pass
- 双管板double tubesheet
- 双管法double-tube method
- 双管孢blasteniospore
- 双管型Double barrel
- 双管征Double duct sign
- 双管机枪machine gun
- 双管稠油泵dual string thick oil pump
- 双管拌热dual tubing production with heat tracing
- 双管正激double barrel stirred up
- 双管反激dual switch flyback
- 双管采油dual tubing oil recovery
- 双管鸟枪double-barrelled fowling piece
