有时将氧气和蒸气在高压下吹入加压炉中，则所得煤气的热值更高。
Sometimes the oxygen and steam in high-pressure blowing pressure, the gas furnace calorific value of the higher income.
有时将氧气和蒸气在高压下吹入加压炉中，则所得煤气的热值更高。
Sometimes the oxygen and steam in high-pressure blowing pressure, the gas furnace calorific value of the higher income.
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