The Chemistry and Camera instrument, seen above before a recent test firing at Los Alamos National Lab in New Mexico, USES a pulsed laser beam to vaporize a pinhead-size piece of material.
图片上是这件化学分析及摄像仪器在新墨西哥州洛斯阿拉莫斯国家实验室进行点火测试前拍摄的。
Jingjing listened to the steady tapping as Arnel thumped a piece of pipe against the thick beam above their heads.
阿恩尔用力敲打头顶上方靠在粗梁上的一根管子，京京听着不断的敲击声。
The bridge, designed as a timber glue-laminated beam (u shape), does not burden the perception of the space, bearing simple appearance of a large solid piece of timber.
这座被设计为胶合木板梁(U型)的桥没有视觉上的沉重感，它由外形简单的固体木块构成。
When the door frame is seriously distorted, the main beam, the supporting legs, the lower beam, the trolley and the connecting piece of the frame can bear large distortion stress.
在门架严重扭曲时的主梁、支腿、下横梁、台车及他们之间的连接件均会承受很大的扭曲应力。
During pipe line laying or large beam support welding, it often meets crossover of two or multi different axis large diameter pipe piece.
在管道铺设或大型梁架焊接过程中，往往会遇到两个或多个不同轴线的大直径管件相交的情况。
The first frequency method of estimating the fatigue serviceability on small and medium span railway concrete bridge is discussed in this paper through three piece test beam under fatigue load.
通过三片模拟梁试验实测结果，探讨了基频法评估铁路桥梁疲劳使用性能的可行性。
The first frequency method of estimating the fatigue serviceability on small and medium span railway concrete bridge is discussed in this paper through three piece test beam under fatigue load.
通过三片模拟梁试验实测结果，探讨了基频法评估铁路桥梁疲劳使用性能的可行性。
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