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.
闪光推进和顶锻采用凸轮控制,闪光速度平稳对接焊口质量好。
Flash impetus and adopting projection anulus controlling upsetting, steady speed flash and quality of butt welding point is well.
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.
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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