Macro and micro structure of the fractured steering knuckle arm was examined by optical microscope and scanning electron microscope.

采用光学显微镜和扫描电镜对断裂转向节臂的宏、微观组织进行了分析。

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Light from the laser goes through the optical circulator, and is divided into the sample and reference arm by the fiber coupler.

激光器发出的光通过光环行器，被光纤耦合器分成样品臂和参考臂。

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In this paper we report a new type of velocity interferometer, optical fiber velocity interferometer, which USES optical fiber as the delay arm.

本文提出了一种用光纤作为延迟臂的新型速度干涉仪——光纤速度干涉仪，用以测量速度随时间的变化。

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The 31-year-old was later cleared by the ICC after a University of Western Australia biomechanical analysis, which concluded that the bent-arm action created an "optical illusion" of throwing.

BBC: Muttiah Muralitharan