Next comes the tropopause, which is the upper boundary of the troposphere.

其上是对流层顶, 它是对流层的上部边界.

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A name of the upper boundary of the set of numbers.

一种数字集合的上界的名字.

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Water quality of Suzhou Creek is affected by both local pollution loads and upper boundary.

苏州河水质的好坏既受上游边界来水水质的影响,又受支流水质的影响.

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A descending triangle has a flat lower boundary and a declining upper boundary.

下跌三角形有一条水平的下边,还有一条下跌的边.

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