The economic conception about margin theory is imported to realize the loss allocation using marginal coefficient.
考虑将系统的总网损分摊到各个节点，引入经济学中的边际理论，利用边际系数对网损实现分摊。
Marginal loss coefficient method is applied in several electric power market at present.
边际网损系数法是当前各国电力市场应用较多的一种方法。
The production elasticity coefficient for plant industry fee is higher, but the marginal efficiency is decreasing year by year.
种植业费用生产弹性系数较高，但边际效益逐年递减；
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