It has no way to establish a mathematics model due to the complicated characteristics of electrical heater's temperature controlling.
由于电加热器升温复杂的特性，无法建立数学模型，针对PID调节不能很好地满足全过程的控温要求的现状，采用了专家系统与PID控制相结合的方法，确定专家智能控制器的系统结构。
参考来源 - 电加热器的专家智能控制·2,447,543篇论文数据，部分数据来源于NoteExpress
The aim is to switch the whole country over to electrical heater.
目的是使全国都能改用电暖气。
These probes include a small electrical heater which is supplied from a small battery in the pressure case.
这些探头各有一个在加压情况下由小蓄电池供电的小型电热器。
Therefore this paper studies the performance of this electrical heater, and analyzes the influences of the structural parameter to the performance.
对该电加热器的性能进行了研究，并分析了影响其性能的结构参数。
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