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.
为此，本文对冲天炉熔炼锻造白口铁进行了试验研究。结果表明，采用适当的熔炼工艺和必要的炉前处理，可以生产出具有良好锻造性能的白口铁铁水。
In this paper, smelting it with cupola was experimentally studied and the results obtained shows that wrought white iron can been smelted with cupola by means of some right processes.
齐全的炉前分析仪器和先进的清理设备以及完善的理化试验室，确保了铸件的质量。
The quality of castings are guaranteed by completed analyzing instruments in front of the furnaces, advanced processing equipment and perfect physical and chemical lab.
齐全的炉前分析仪器和先进的清理设备以及完善的理化试验室，确保了铸件的质量。
The quality of castings are guaranteed by completed analyzing instruments in front of the furnaces, advanced processing equipment and perfect physical and chemical lab.
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