To design these elements in intrinsically-saf circuit is more practical than to design air-core inductance coils.
因此，在本安电路中设计这些元件比设计空芯电感更有实际意义。
Principle of radiant time series method was precisely described and steps through which design air cooling design load calculations can be introduced.
简要介绍了辐射系数法的计算原理以及利用它计算空调设计负荷的步骤。
For boiler air-flow rectangular tube, the article introduced using Logarithmic Chebychev method to design air-flow meter and choose appropriate proper model according to design scheme.
文章针对锅炉送风矩形大管道，运用“对数一切比雪夫”法的速度一面积法，来设计风量测量装置，以及根据设计的方案选型。
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