The Big Bang model of cosmology rests on two key ideas that date back to the early 20th century: General Relativity and the Cosmological Principle.
宇宙学中的大爆炸模型可以追溯到20世纪初的两个核心思想：广义相对论和宇宙学原理。
This makes the equivalent principle as the one of basis hypothesis of the general theory of relativity to gain more extensive basis.
这使得作为广义相对论基本假设之一的等效原理得到更广泛的依据。
For the general relativity, the experiments of examining the principle of equivalence, Newton's limitation and inferences introduced by the theory must be included.
对于广义相对论，检验实验应包括对等效原理的检验实验，对牛顿极限的检验实验，以及对广义相对论推论的检验实验。
White holes have never been observed, though general relativity predicts they could exist in principle.
人们从未观测到过白洞，然而广义相对论认为白洞原则上是存在的。
The equivalence principle of general relativity is also advanced.
扩充了相对论的等效原理。
The equivalence principle of general relativity is also advanced.
扩充了相对论的等效原理。
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