论述了提高双断口真空断路器开断能力的原理，比较了双断口和单断口真空断路器的开断能力。
The mechanism of improving the breaking capacity of vacuum circuit breaker with double breaks is presented in this paper.
这种接触器采用银氧化镉材料，双断接点，有利于保证较长的电气寿命、较高的抗焊接性能和杰出的断开容量。
The contactors feature silver cadmium oxide, double break contacts to assure a long electrical life, high weld resistance and excellent interrupting capacity.
我应该这么说。我穿着一件很厚重的大衣。我想这救了我，使我免于断一双手臂。
I should say so. I was wearing a heavy coat. I think that saved me from having broken arm.
进一步分析双谱相位信息，可以确定单缸断油时的故障缸位置。
Moreover, through analyzing the information of bispectrum phase, the fault cylinder position can be pointed out in misfire fault.
通过严格的理论推导，论证了自适应电流速断保护不仅适用于单回线运行方式，同样适用于双回线或环网运行方式。
Strict theoretical deduction shows that adaptive current fast - tripping protection can be used not only on single - circuit line, but also on double - circuit line.
目的探讨离断性肾盂成形术及双J管内引流治疗肾盂输尿管连接部梗阻的疗效。
Objective: To evaluate the clinical effects of internal drainage in Anderson-Hynes operation for the treatment of ureteropelvic junction (UPJ) obstruction.
在复杂小断块油田的整体开发中，运用双增双稳剖面定向井有利于丛式井组的防碰。
During production of complicated and craven faulted oilfields, the directional drilling technology with bibuild and bihold profile is used to prevent the hits of cluster wells.
于大鼠胃窦部缝置应力传感器，将大鼠双侧后肢骨膝关节以上钳断，制备应激模型。
Methods: With strain-gauge transducers placed on antrum of rats, the stress model were made by fracturing the hind legs of rats beyond the knee joints.
研究区具典型断陷-坳陷双层地质结构，表现南北向双物源特点。
The study area has the typical double-layer geologic structure of rift-depression, and has double provenance supply in the north and south.
目的探讨离断性肾盂成形术及双J管内引流治疗肾盂输尿管连接部梗阻的疗效。
Objective To investigate the causes and prevention of restenosis after pyeloureteroplasty in children with ureteropelvic junction obstruction(UPJO).
目的探讨离断性肾盂成形术及双J管内引流治疗肾盂输尿管连接部梗阻的疗效。
Objective To investigate the causes and prevention of restenosis after pyeloureteroplasty in children with ureteropelvic junction obstruction(UPJO).
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