用这种方法去测量光速是危险的。
It is dangerous using this method to measure the speed of light.
目前还没有精确测量光速的手段。
Until now, there is no way to measure light speed accurately.
基于该理论基础重新设计塞曼效应试验，就可以得到测量光速的一种新方法。
Based on the theoretical basis for re-engineering Zeeman effect experiment, we can get a new method for measuring the speed of light.
介绍了一台自制的利用相位差法测量光速的仪器的基本原理和方法，并通过对光在空气中的传播速度的测定，使大家对用相位变化测量光速仪器有所了解。
This article introduced the basic theory and method of measuring the velocity of light using the method of phase difference and how to measure the velocity of light using phase difference in air.
物理学家发现粒子运行速度超过光速，如果测量度数准确无误，那就意味着时间旅行是可能的。
Physicists detected particles travelling faster than light, which, if the reading was accurate, means time travel is possible.
这些测量结果意味着中微子的速度要比光速快五万分之一。
The measurement amounts to the neutrinos travelling faster than the speed of light by a fraction of 20 parts per million.
本文主要就采用这一方法测光速时，对影响测量精度的主要因素进行了分析。
This paper mainly on the speed meter of this approach, the main factors affecting measurement accuracy are analyzed.
光速只有在真空状态下才能够被准确测量。
The speed of light can only be precisely measured when the light is traveling in vacuum.
对于单灵敏度激光速度干涉仪，通过对测量速度的理论估算，能够帮助判断丢失条纹数，从而得到正确的测量结果。
For the single sensitiveness VISAR interferometer, the Numbers of lost stripes in signals can be judged by calculating the velocities so as to get accurate experimental results.
为了准确观察炸药驱动金属运动的细节，用激光速度干涉仪(VISAR)测量了金属平板表面速度变化历程。
For observing the details of movement of metallic parts driven by explosive detonation, free surface velocities of the metal plates were measured with the VISAR interferometer.
为了准确观察炸药驱动金属运动的细节，用激光速度干涉仪(VISAR)测量了金属平板表面速度变化历程。
For observing the details of movement of metallic parts driven by explosive detonation, free surface velocities of the metal plates were measured with the VISAR interferometer.
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