The calculation result indicates that for a given starting condition, the coefficient is not a constant, but varies with the relative exposure degree of grain.
结果表明，在起动状态一定时，该系数并非为一个常量，而是介于某个区间，且随颗粒在床面上的相对暴露度的变化而变。
The calculation result indicates that for a given starting condition, the coefficient is not a constant, but varies with the relative exposure degree of grain.
结果表明，在起动状态一定时，该系数并非为一个常量，而是介于某个区间，且随颗粒在床面上的相对暴露度的变化而变。
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