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。

youdao

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。

youdao