inertial reference frame

基本解释

Well, the First Law works when the frame of reference is what we call an "inertial" frame of reference.
牛顿第一定律只有当,当参考系为惯性参考系时成立。
And an inertial frame of reference would then be a frame in which there are no accelerations of any kind Is that possible?
惯性参考系也就是不存在任何,形式加速度的参考系,有可能吗？
And therefore, in spite of these accelerations we will accept this hall as a reasonably good inertial frame of reference in which the First Law then should hold.
所以，几乎可以忽略不计,教室是一个,很好的惯性参考系,第一定律在这儿是成立的。

So the Earth is an inertial frame of reference, if you go in a train relative to the Earth at constant velocity, you're also inertial.
所以,地球是一个惯性参考系,如果你坐在相对于地球匀速运动的火车里,你也处于惯性状态
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