气体密度

从做好地质构造复杂工作面的顶板管理、严格控制井下工作面瓦斯浓度和引爆火源、加强安全培训工作3个方面探讨了安全生产的措施。

gas range

exhaust gas【环境】;off-gas【环境】[专业]炼油时产生的\ntail gas【油气】;vent gas【环境】

liquified gas density meter

exploitative engineering of offshore petroleum-gas reservoir【油气】

jet-propulsion plants having more than one gas turbine

gas socket, quick-acting pipe coupling with cut-off apparatus

exhaust steam preheater, waste gas feed heater

Schilling's specific gravity gas