In this paper the lawofcoefficient of variation has been adopted to confirm decision-making model parameter of calculating;
在确定储位分配决策模型参数计算中，采用了变异系数法；
2
Moreover, the variation lawof mold surface hardness and interface heat transfer coefficient were studied.
另外，研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
3
Energy lawof similitude for laser propulsion refers to the law that there is an optimum nozzle configuration for the largest value of impulse coupling coefficient at certain incident laser energy.