双语例句原声例句
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随着脉冲经过，折射率发生改变，靠近脉冲的光速度越来越慢。
Light in the vicinity of the pulse is slowed more and more when the refractive index changes as the pulse passes by.
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这对提高JSG—1型激光速度干涉仪的测试精度具有重要意义。
This modification has important significance for improving the measuring accuracy of the model JSG-1 laser velocity interferometer.
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ASA曝光指数∶由美国国家标准学会规定，标明胶片对光的敏感程度的指数或感光速度。
ASA Exposure: Index or speed rating that denotes the film sensitivity, defined by the American National Standards Institution.
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Light travels basically a foot in a nanosecond. Simple rule of thumb.
光行进的速度是每纳秒一英尺,很简单的经验法则了。
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