These examples illustrate an important principle in the special theory of relativity.
这些例子阐明了特殊的相对论中的一个重要的原理。
This paper presents two basic principles: 1. Relativity principle of minimum force;
提出二个基本原理：1。相对性最小作用力原理；
The equivalence principle of general relativity is also advanced.
扩充了相对论的等效原理。
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。
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。
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