... 伸缩密封 bellows seal 伸缩式阀 bellows-type valve 次临界 below critical ...
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短语
伸缩式阀活塞
expansion valve piston
伸缩式节流阀
expansion throttle valve
伸缩式捶拍阀
telescoping trip valve
法兰式伸缩蝶阀
SSDF
;
GFSD
法兰伸缩式蝶阀
Flanged telescopic butterfly valve
电动法兰伸缩式蝶阀
Eletric flange telescopic butterfly valve
伸缩式装料长杆阀
retractable filling lance valve
桁架板式伸缩蝶阀
truss type stretchy butterfly valve
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