这就是我如何计算出,数字160的，要不然，是不会知道的。
That's how I came up with that number 160, otherwise I wouldn't have known.
给定一个视频的长度，我如何计算多少空间，它将转换后的？
Given the length of a video, how do I calculate how much how much space it will take after conversion?
我如何计算一个作者、国家、研究机构或期刊的篇均被引频的相对次值？
How can I compute a relative citations per paper value for an author, country, institution or journal?
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