里面很黑，什么也看不见，只有一盏煤气灯照亮了石灰墙上的一片地方，别的全隐没在更黑的阴影中。
It was very dark inside: I could see nothing except a flaring gas-jet that illuminated a patch of plaster wall, throwing everything else into deeper shadow.
适用介质：给水处理，煤气管道，锅炉蒸汽，石灰浆液，球阀食品，角阀纺织，含颗粒海水。
Suitable media: water Treatment, Gas pipeline, Steam boiler, Lime slurry, Food, Textile, Sea water contains particles, etc.
煤气、空气在外燃式石灰炉的环形燃烧室内混合均匀，燃烧充分，火焰温度均匀，便于控制。
Through homogeneous mixing between gas and air in cyclical combustion chamber of gas external combustion type lime kiln, it can be enough combustion, has homogeneous flame temperature.
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