它们固然加热形式不同，但克制原理本同末异，并各有优缺陷。
They is heating form different, but restraint principle with this at the end of the different, and each has optimal defects.
论述了加热炉炉门使用中存在的缺陷及问题。
This paper introduces the defect and using problem of heating furnace door.
结果表明，钢坯的内在缺陷、加热温度偏高及加热不均匀是产生边裂的主要原因。
The results showed that the immanent quality disfigurement of billets, the heating temperature on the high side and non-uniform were the main factors to cause the edge cracking.
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