日期:
来源:雅诚德英语网
Einstein used a definition of time for experimental purposes, as that which is measured by a clock.
爱因斯坦在实验中使用了时间的定义,就像钟表所测量的时间一样。
Einstein used a definition of time for experimental purposes, as that which is measured by a clock.
爱因斯坦在实验中使用了时间的定义,就像钟表所测量的时间一样。