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介绍了塞拉门防冻电热装置的原理、结构、形式。通过实验分析 ,提出了塞拉门防冻电热装置的技术条件和检验要求。
The principle, structure and form of the plug door antifreezing electric heating device are introduced. Through experimental analysis, the technical conditions and inspection requirements of the plug door antifreeze electric heating device are proposed.