double barrel 破碎炙炎 ; 复式岩心管 ; 破碎灸炎 ; 双管散弹枪
double barrel electric hoist 双筒电动卷扬机 ; 双筒电动绞车
double barrel midship pump 双筒船中部抽水泵
double-barrel separator 双筒分离器
Double Barrel Shotgun 双管散弹枪 ; 双筒鸟枪
double barrel colostomy 双管结肠造口术
Spherical roller bearings are double-row, self-containing units that comprise solid outer rings with a concave raceway, solid inner rings and barrel rollers with cages.
球面滚子轴承是双列，自我包含的单位，包括坚实的外圈与凹面滚，固体和内圈与辊每桶笼。
This paper introduces the principle of double barrel drum mix plant and the application in producing the asphalt mixture, aiming at the rounding town project of Foshan.
阐述了双滚筒连续式拌和楼的工作原理，并以佛山一环城际快速路为工程依托，介绍其在沥青混合料生产中的应用。
The main circuit USES the double barrel pair to stir up the topology, and USES the pulse electric current comparison control technology and soft switch technology.
主电路采用双管双正激拓扑结构，采用了逐脉冲电流比较控制技术和软开关技术。
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