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- optimal harvesting effort 最优捕获努力量
- Objective To research the optimal harvesting time of Salva miltiorrhiza Bge. 目的探讨丹参最佳采收期。
- Chapter 2 is mainly on the optimal harvesting policy for two mutualistic species. 第二章主要是关于互惠双种群的最优收获策略。
- Objective To discuss the optimal harvesting time of Scutellariae baicalensis Georgi. 目的探讨黄芩的最佳采收期,为规范化种植提供依据。
- Objective To identify the optimal harvest time for maximal contents of isoflavones in Trifolium Pratense. 目的为确定红车轴草最佳采收期提供依据。
- Objective:To defermine the optimal harvest time for P. notoginseng through studying the changes of saponin contents with growth periods. 目的：研究三七皂苷的积累规律，为确定三七的最佳采收期提供依据。
- Chapter 3 studies a dynamic optimal problem, which combines the optimal harvesting of two mutualistic species with the optimal utilization of productive capital. 第三章研究了将可再生资源的最优收获同生产资本的最佳利用结合起来的动态优化问题。
- The optimal harvesting policy of the single specie was studied with age distribution when two stages were harvested respectively. From this theory, it was significant to protect our ecology system. 利用最优捕获策略的理论,研究一个具有年龄结构的单种群模型,获得了其幼年种群和成年种群捕获的优化理论。由此来探讨保护生态系统的重要意义。
- The thought nerved me to make an other effort. 这种想法激励我再作一番努力。
- The brandy nerved him for an effort. 白兰地酒给他努力发奋的勇气。
- His latest effort is a poor excuse for a novel. 他最近的作品只是一部劣质的小说。
- After harvest we will have a mass of rice. 秋收后，我们将获得大量稻谷。
- He braced every nerve for a supreme effort. 他振作精神准备全力以赴。
- It's quite an effort to lift this heavy box. 抬起这只沉重的箱子要花费相当大的力气。
- Optimal Harvesting Control Problem of Mutually Beneficial System 关于互惠系统的捕获优化问题
- I rallied all my energy for further effort. 我振作精神以做再次的努力。
- The research yielded a rich harvest. 该项研究有了丰硕的成果。
- Effort and achievement are always in full accord. 努力和成就总是相辅相承的。
- I hope that all your effort will not go for naught. 我希望你的努力不会毫无结果。
- The bad harvest led to severe food shortage. 歉收引起食物严重短缺。
