Double Flap Valve mix valve 怎么翻译Double Flap Valve 和 mix valve 的翻译 2个词

Double Flap Valve mix valve 怎么翻译Double Flap Valve 和 mix valve 的翻译 2个词 英语翻译double flanged water meter pressure switch with isolating cock pressure gauge with isolating cock double air relief valve with isolating gate valve double flanged dimantiling pieceflanged flap valve Double Flanged Butterfly Valve 是什么 阀门中的 double nippel、cap、valve seat in the body、valve seat on the 英语翻译selicia bag(light)-shell facing.straight double besom pockets,with flap*flap width 2-1/8from top of besom*length 6-3/8 * lining bag-no facing *** flap typc:flared round corners*flap code:R101*** valve flap是什么意思 wheel flap double double double double double double double double Double double