总结xx畅想xx演讲稿200字

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总结xx畅想xx演讲稿200字1：Einstein Albert
It is predicted by the theory of relativity
2：FIND GRAVITATIONAL WAVE
American researchers announced in February 11, xx that they used the laser interferometer gravitational wave observatory (LIGO) in September last year for the first time to detect gravitational waves
3：WHAT IS GRAVITATIONAL WAVE
Gravitation
al waves propagate in the form of waves and the propagation of finite velocity.
4：The main properties of GRAVITATIONAL WAVE
It is a shear wave, in the far s ...

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关键词：演讲稿 Propagation Researchers Relativity Properties