double-un.字母wdoubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double faucet shampoo spray双笼头洗头喷水器double - clad fiber laser双包层光纤激光器double way dependent output双路独立输出double leg elbow amplifiler双臂肘形弯管放大器double soft soil foundation双层软土地基double antibody solid phase双抗体固相, 固相双抗体double linear stage pattern复线生产结构double-winding alternator双绕组交流发电机double layers of sprinkling双层喷淋double-slider crank chain双滑块曲柄链系