During lowering charge level with water spraying into the blast furnace, the gas is recovered and the charge level is judged by the blast volume not by special stock rod.

操作时采用空料线法(从炉顶打水)，回收高炉煤气，不安装特殊探尺，用风量判断料面行程。

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The gas flow in blast furnace with various burden charge patterns has been analyzed by numerical simulation with finite difference method.

用有限差分法对高炉内气体流动行为进行了数值解析，并系统地分析了不同料床结构对气体流动行为的影响。

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Pellets as an ideal metallurgical furnace charge are widely used in blast furnace and electric furnace smelting as far as the metallurgical properties are concerned.

从冶金性能上来讲，球团矿作为一种理想的冶金炉料广泛应用于高炉冶炼和电炉熔炼。

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