短語(yǔ)詞組短語(yǔ)bypass gas damper 旁通菸氣擋板Bypass Duct Guillotine Damper 旁路風(fēng)門(mén)bypass damper control 旁路擋板調(diào)節(jié)FBD Face Bypass Damper 雙道氣鄰器face and bypass damper 單道氣鄰器 返回 bypass damper