Primary Off-Gas Duct Dampers是什么意思

Primary Off-Gas Duct Dampers是什么意思 The gas is off off gas grid switch off the gas fany 翻译 Switch off the gas 翻译 急 switch off the gas fany 翻译 duct是什么意思 duct sealer gas gas cars give off garmful gases这里能用gas吗 switch remember off to gas the；连词成句 take our foot off the gas 求大师翻译 primary primary primary primary containment duct什么意思