This is the average rows per second over the length of the interval.
这是除以周期长度得到的平均每秒行数。
Tape length: 15 minutes per side.
磁带长度：每带面15分钟。
Tape length: 60 minutes per side.
磁带长度：每带面60分钟。
The problem is not the length of work per se - it's the use of that length.
问题不在于作品的长度，而在于对于长度的利用。
The problem is not the length of work per se - it's the use of that length.
问题不在于作品的长度，而在于对于长度的利用。
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