加热形式：电加热器加热。
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.
纺丝箱的设计主要是确定其结构、尺寸、加热形式和保温问题。
The design of spin beam mainly includes the construction, size, heating mode and the thermal insulation.
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