A method of crystal rotation interference to measure liquid crystal birefraction is introduced.

本文介绍一种晶体旋转干涉法测试液晶双折射的实验方法。

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It can be a principle for designing liquid crystal and the pretilt angle tester using the method of crystal rotation.

它可作为设计晶体旋转法测试液晶双折射和预倾角测试仪的原理。

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Christmas Eve on the front of the socks hanging in the window promised wishes, crystal radiates light, music box xylophone sounded the voice of Barbie rotation.

圣诞夜对着挂在窗上的袜子许下愿望，水晶球散发着光芒，音乐盒响起了木琴的声音，转动的芭比。

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Testing a similar crystal, the scientists proved that by rotation it was possible to find the point where the two beams converge - indicating the direction of the Sun.

BBC: 'Viking sunstone' found in shipwreck