The calculation and drafting method in the safe operation range of POwer MOSFET are studied in this paper.

本文研究了功率MOSFET管的安全工作区的计算及绘制方法。

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This system can effectively eliminate water during the various problems, so that the boiler water level in a given range, to ensure the safe operation of the boiler.

本系统能够有效克服给水过程中出现的各种问题，使锅炉汽包水位在给定的范围内，保证锅炉的安全运行。

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Therefore, the maintenance of the boiler water level in a given range is the protection necessary for safe operation of boilers, boiler properly one of the key indicators of.

因此，维持锅炉汽包水位在给定范围内是保护锅炉安全运行的必要条件，也是锅炉正常运行的主要指标之一。

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