中心点火管传火孔射流场直接影响火炮膛内的点火传火过程。
The jet flows from vent holes in a center-core igniter strongly influence the process of ignition in guns.
介绍了外火箱矩形竖窑进火孔改造前的使用情况以及改造的必要性；
This article introduces the application of fire entry hole of rectangle kiln with outer fire box before reconstructing and the necessity of reconstruction.
开启探火孔观察，炉内料层表面一片火光，出现局部冒火，烧穿现象。
Open Ethan fire hole observation, coal layer surface in a furnace, appear local fire blaze, burning through phenomenon.
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