应用极大值原理，得出了外部性期权最优控污成本和污染评价水平的求解方案。
Using maximal principle the found solution scheme of the exterior options optimization pollution-control cost and pollution-evaluation level has been derived.
应用极大值原理，得出了外部性期权最优控污成本和污染评价水平的求解方案。
Using maximal principle the found solution scheme of the exterior options optimization pollution-control cost and pollution-evaluation level has been derived.
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