The model test of jet angles was studied for impulse flame heating in top one-way fired pit.
在单烧嘴均热炉采用脉动火焰加热，根据模型实验结果，组织了工业试验。
The intrinsic problems found in the long top-fired soaking pit are discussed and the relevant modification schedule is raised herewith.
指出了上部单烧嘴长坑均热炉的固有问题及改造方案；
Thus the pot sits in a depression, which is the 'pit of fire', as if it were being naturally fired.
体育场坐落于像火坑一样的洼地中，看上去真像自然烧结而成。
Thus the pot sits in a depression, which is the 'pit of fire', as if it were being naturally fired.
体育场坐落于像火坑一样的洼地中，看上去真像自然烧结而成。
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