形象地描述爱因斯坦《广义相对论》中的等效原理,引入引力场的概念.通过非惯性系中的浮力现象和非惯性参照系中的力的平衡的案例,来描述爱因斯坦《广义相对论》中的等效原理在这些实际问题中的应用.在非惯性系中,应用了爱因斯坦的等效原理,使一些在惯性参照系看起来很复杂的问题变得很容易解决.
We vividly describe the equivalence principle in Einstein's " general theory of relativity",and introduce the concept of gravitational field. Through the cases of buoyancy phenomenon and force balance in noninertial system,we describe applications of the equivalence principle of the Einstein's " general theory of relativity" in these practical problems. In the non-inertial system,using the Einstein equivalence principle can help solve some problems more easily,which look more complicated in inertial system.