阀门英语 external parts(body and

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阀门英语 external parts(body and
external parts(body and bonnet)这句话是指阀门和阀座的内件,还是就指阀门和阀座
那么Internal parts (Disc- seat)有是指什么呢？有Disc- seat这个部件吗？

external parts 指的就是阀门的阀体和阀盖；
对应的有阀门的内件trim,比如阀板,阀座,阀杆,填料等 \
你所说的Internal parts (Disc- seat)和Trim是一个意思,都是指阀体和阀盖里面所包含的部件

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