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- 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。
- 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。
- Two Players' Economic Harvesting Policy in Fishing Industry 双寡头的经济捕鱼策略
- He took out a fire insurance policy for his house. 他为自己的房子办理了一份火险保险单。
- After harvest we will have a mass of rice. 秋收后，我们将获得大量稻谷。
- The research yielded a rich harvest. 该项研究有了丰硕的成果。
- I will never swerve from my declared policy on this matter. 我决不背离我已经宣布的在这个问题上的政策。
- The bad harvest led to severe food shortage. 歉收引起食物严重短缺。
- We have a plenteous harvest this year. 我们今年取得了大丰收。
- The harvest has been safely gathered in. 庄稼已妥善收获完毕。
- Could I ask for your reaction to this policy? 我能问一下您对这个政策的反应吗？
- The peasants are harvesting rice in the field. 农民们正在田野里收割稻子。
- It is company policy to discourage office romances. 公司的方针是阻止职员之间的风流韵事。
- The president has no consistent policy. 那位总统的政策缺乏一致性。
- Farmers are very busy during (the) harvest. 在收获季节里农民非常忙碌。
- Excessive rainfall had made the harvest impossible. 雨量过多，丰收已经不可能了。
- The policy will put on the cost of living. 这些政策将使生活费上涨。
- The autumn harvest is about to start. 秋收即将开始。
- We are all very busy because it's the harvest time. 因为现在是收获期，所以我们都非常忙。
- The annual premium on my policy is 3000 yuan. 我的保险单每年的保险费是三千元。
