The excellent video coding performance of H. 264 is obviously built upon its high complexity, and the algorithm itself has plentiful coding tools including video compress and net transmission.
On the other hand, a representation for limit of convergent net in (h (X), h) is given by means of operations of union, intersection and closure.
另一方面，给出了(h (X)，h)中收敛网的极限通过并、交及闭包运算的表示。
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H. total revenue: the total amount obtained by summing up the net sales or net revenue from operation, revenue from other operation and revenue from non-business operation.