doublegateadj.双闸门的(双选通的)doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double pipe longitudinal finned exchanger双套管式纵向翅片换热器double monoclonal antibody sandwich ELISA双抗体夹心ELISA法double port synchronization communication双端口同步通讯double coloured plastic injection machine双色注塑机double layer fluorescent antibody technic双层荧光抗体技术double-membrane water treatment process双膜法水处理工艺double-wind-ing synchronous generator[电] 双绕组同步的发电机double-declining-balance depreciation[经] 双信余额递减折旧法Double potential step chronoabsorptometry双电势跃计时吸光度法double - frequency vibration compaction双频振动压实