... 坠锤测深：strike sounding 锥座阀：taper seat valve 锥子粗针：bodkin ...
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... valve-seat contact 气门座接触面 valve with conical seat 锥座阀 Safety valve spring seat 安全阀弹簧座 ...
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短语
锥形座阀
conical seat valve
;
bevel seated valve
;
taper seat valve
;
conically seated valve
锥形座面阀
miter valve
锥阀座
Poppet Seat
锥形阀座
conical valve seat