duplexorn.双工器duplexn.双层公寓；联式房屋adj.双倍的；复式的；[计] 双方的Duplex home living双人家庭生活duplex calculating双重计算duplex piston pump双缸活塞泵duplex spring joint双曲簧接头duplex warm standby双机热备份duplex plate planer复式板刨床duplex creped paper双层彩色皱纸duplex transmission双工传输duplex conical ring双锥环duplex plunger pump双缸柱塞泵