dragline cableway excavator 吊斗挖掘机dragline excavator 拖铲挖土机dragline scraper 带式刮土机dragline tower excavator 塔式拖铲挖掘机dragline 索斗挖土机dragnet 拖网dragon boat 龙船d...
drawing and writing appliance 书画用品drawing apparatus 绘图仪器drawing appliance 绘图用具drawing bench 绘图桌drawing board 绘图板drawing book 图画本drawing compass 绘图圆规dr...
double-crank ward cot 双摇柄病床double-cross leno 全绞式纱罗double-current generator 双流发电机double-current key 双流电键double-current relay 双流式继电器double-cut file 双纹锉d...
double-flow reheat-condensing steam turbine 双流再热冷凝式汽轮机double-flow type boiler 双流式锅炉double-flue boiler 双炉胆锅炉double-frequency generating set 双频发电机组doubl...
double-row spherical ball bearing 双列球面球轴承double-screw continuous mixer 双螺杆连续混合机double-screw conveyor 双螺杆输送机double-screw extruder 双螺杆挤出机double-screw mi...
double-tube heat exchanger 套管热交换器double-tube injector 双管喷射器double-tube pressure gauge 双管压力表double-tube reactor 双套管反应器double-tube washing machine 双桶洗衣机...
double cylinder diaphragm pump 双缸隔膜泵double cylinder engine 双汽缸发动机double cylinder jacquard machine 双针筒提花针织机double cylinder jacquard 双滚筒提花机double cylind...
double grip garter 双钩吊袜带double groove continuous extruding machine 双槽连续挤压机double handle incense burner 双把香炉double handle pipe wrench 双柄管子钳Double Happi...
double open end spanner 双头扳手double open end wrench 双头扳手double oriented silicon steel 双取向硅钢板double oscillator 双振荡器double oscillograph 双电子束示波器double ove...
double sliding back gear 双滑动背齿轮double slug tuner 双插心式调谐器double soap 联皂double source array television antenna 双源阵列电视天线double spiral agitator 双螺旋搅拌器doub...