duplexn.双层公寓；联式房屋adj.双倍的；复式的；[计] 双方的duplex set双马达传动duplextypeadj.双联式的duplex PCR二重PCRduplex dna双螺旋duplex flat复式住宅单位duplex typeadj.双联式的duplex nail双头钉duplex ally双相合金duplex dial双工拨号盘duplex lock双重锁