According to this method of multi-polar set dynamic balancing valve design concept is wrong.

而按照这一方法多极设置动态平衡阀设计概念是不对的。

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And, of course, we know also how to set up these integrals in polar coordinates.

当然，我们也知道，怎样用极坐标来计算这些积分。

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And, of course, we know also how to set up these integrals in polar coordinates.

当然，我们也知道，怎样用极坐标来计算这些积分。

youdao