通过计算与燃具试验，分析了天然气混空气转换人工煤气的适用性。
The applicability of converting from manufactured gas to natural gas-air mixture is analyzed through calculation and gas appliance test.
通过燃烧试验，研究了炉前成型煤的层燃特性：通风均匀性、炉温水平、烟气成分、燃烬程度。
The characteristics of the firing bed, that is, ventilating evenness, temperature level, gas composition, burn - off rate, are studied, respectively, by means of combustion experiments.
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