In the framework of Hayashi's gravitation theory with torsion, the general form of parallelism tetrad field in Schwarzshild coordinate system is presented.

在有挠引力理论框架内，给出施瓦西坐标系平行标架场的一般形式。

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The evolvement of cosmology is studied in the framework of higher-derivative theory of gravitation.

利用高导数引力理论研究宇宙的演化。

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The theory of gravitation proved to be a very powerful concept.

在万有引力理论被证明是一个非常强大的概念。

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Kepler is famous for discovering the three laws of planetary motion, laws which Isaac Newton later re-derived with his universal theory of gravitation.

FORBES: Kepler, Mars and the Turning Point in Astronomy

In spite of these misgivings, there is nothing in Einstein's theory of space, time and gravitation to forbid journeying into the past, a possibility that Einstein himself hated.

CNN: Time travel: Can it really be done?