互惠

In Part 3 we study the mutualism system with several delays Sufficient conditions are obtained for the existence of positive periodic solutions of the system by using the theory of Mawhin coincidence degree .

第三部分考虑了两种群带多时滞的互惠系统我们利用Mawhin重合度理论，得到了系统正周期解的存在性的充分条件，推广了文[28，29]的结果，并且删去[30]的某些条件。

In Part 3 we study the mutualism system with several delaysSufficient conditions are obtained for the existence of positive periodic solutions of the system by using the theory of Mawhin coincidence degree .

第三部分考虑了两种群带多时滞的互惠系统我们利用Mawhin重合度理论，得到了系统正周期解的存在性的充分条件，推广了文[28，29]的结果，并且删去[30]的某些条件。

In the third chapter, we study the existence, uniqueness, global stability of positive solution and MLEs of parameters of Lotka-Volterra competition system, mutualism system and predator-prey system with random perturbation.

第三章研究了具有随机扰动的Lotka-Volterra型的竞争系统，互惠系统和捕食-被捕食系统正解的的存在性，唯一性，全局渐近稳定性以及参数的极大似然估计。

Therefore, we expect you to pay more attention to, and mutually beneficial common development!

所以，我们期待你们更多的关注，并在互惠互利中共同发展！

We have the spirit of mutually beneficial purpose to provide you with good quality products and services.

我们本着互惠互利的宗旨为您提供优良品质的产品及服务。

We sincerely look forward to working with you in the long-term mutually beneficial cooperation.

我们真诚的期待着与您的长期的互利互惠的合作！

Our goal is to establish long-term and mutually beneficial strategic partnership with our customers.

我们目标就是与客户建立长期的互惠互利的战略合作伙伴关系。

Our hope and more companies and customers to establish mutually beneficial relations of cooperation.

本厂希望与更多的公司和客户建立互利互惠的合作关系。

Let us in mutually beneficial win-win and common development.

让我们在互惠双赢中共同发展。

For mutual funds, price is the net asset value.

对於互惠基金，价格相当於资产净值。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。