double ring valve的意思|示意

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双环阀

double ring valve的网络常见释义

双座阀 ... 双槽火下加煤机 double retort underfeedstoker 双回流阀 double return valve 双座阀 double ring valve ...

double ring valve相关短语

1、 double-ring valve 双环阀

double ring valve相关例句

Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。