把这一标准差和两次的平均值相比较,我们就能发现他们很相像,(因为我们知道重力加速度是个常数)。
Comparing the ratio of standard deviation to the average for these two distributions shows that they are similar.
把这一标准差和两次的平均值相比较,我们就能发现他们很相像,(因为我们知道重力加速度是个常数)。
Comparing the ratio of standard deviation to the average for these two distributions shows that they are similar.
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