double convex ring 双凸环double cooling and heating back counter reshaping machine 双冷热式鞋后跟整形机double copper-wire crosstalk suppression filter 双铜线串音抑制滤波器do...
double boiler 双层锅double bond 双键double border lace 双面边纹花边double bottom tank 双层底油仓double bracket 双支架double brim calot of wool felt trimmed with feathers...
Doppler ultrasonic angiograph 多普勒超声血管显像仪Doppler ultrasonic blood pressure monitor 多普勒超声波血压监测器Doppler ultrasonic diagnosis apparatus 多普勒超声诊断仪Doppler ul...
domestic fowl and pheasant feather 家雉鸡毛domestic fowl and pheasant skin 家雉鸡皮domestic fuel oil 民用燃料油domestic gasoline 民用汽油domestic glassware 日用玻璃器皿domes...
docosane 二十二烷docosoic acid 二十二烷酸doctor blade 刮墨刀片doctor grinding machine 磨刮刀机doctor knife 刮刀doctor roll 刮刀辊doctor sausage 掺料香肠doctor 印花刮刀doctor's ...
double-channel Mossbauer spectrometer 双通道穆斯堡尔光谱仪double-channel nitrogen laser 双通道氮激光器double-channel planar buried heterostructure laser 双通道板状掩埋式异质结构激光...
double zone gas producer 两段煤气发生炉double zone lotion 双层化妆水double-8mm movie camera 双八毫米活动摄影机double-acting air compressor 双动式空气压缩机double-acting brushing m...
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...
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 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...