universal characteristic

Based on the general expression of Characteristic drying curves, a universal mathematical model is developed for the staged through-Circulation drying with air-rever-sals.

基于物料特性干燥曲线的数学表达式开发了多段换向穿流干燥过程的通用数学模型。

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Using universal PWM method means to control output power and output characteristic through controlling IGBT switch on time.

控制电路采用脉宽调制方式（PWM）进行输出控制，即控制IGBT的导通时间来实现输出功率与输出特性的控制。

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The cosine theorem is not a unique characteristic of triangle, but any plane polygons and any polyhedron ( regard area as attention point), even any many dimensional space similar objects ( regard broad value as attention point) suitable universal law.

余弦定理并不是三角形所独有的特性，而是任何平面多边形、以及任何多面体（以面积为关注点）、甚至任何高维空间类似物（以广义体积为关注点）均适用的普遍规律。

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Cultural multiplicity is the universal characteristic which exists in the human society.

文化多样性是人类社会存在的普遍特征。

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