... converging duct 收缩管道 converging bundle 会聚束 converging tube 渐缩管 ...
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用两种会聚束电子衍射(CBED)技术研究了复合材料界面残余应变场。
The residual strain fields at composites interface were studied with two convergent beam electron diffraction (CBED) techniques.
观察30例显示血流会聚区（FCR）的偏心性二尖瓣返流患者的返流束形态，发现均为附壁细长束。
The shape of regurgitant jets in 30 patients with eccentric mitral regurgitation showing now convergence region (FCR) was observed.
试验结果表明，凹面阴极发射电子束会聚明显。
The results demonstrate that the electron beams emitted from concave cathode are focused obviously.
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