joint cost per unit
常見例句
- Further, limits of cost per unit effort and maximum value of the effort for joint harvesting of these four types of two-species are derived from analyzing the existence of bionomic equilibrium.
進而，通過分析生態(tài)經(jīng)濟均衡的存在性得到了單位努力量使用成本的限制條件和努力量的上確界。
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