網絡釋義
1)escape valve,放汽閥2)steam escape valve,放汽閥3)bypass blow-off valve,旁通放汽閥4)blast cock,放氣閥，放汽閥5)venting valve,放汽閥，空氣門6)emergency blowdown valve,緊急排污閥，危急放汽閥7)BDV (blow-down valve),疏水閥，再熱旁路放汽閥，排污閥8)release of steam,放汽9)steam escape,放汽10)disengaged vapor,釋放汽
