生存

By using the selected capacitor on the dc side, not only the operating conditions of STATCOM are satisfied under symmetric power system, but also the viability is enhanced under asymmetric power system.

按该原则设计的STATCOM，不但满足系统正常条件下的运行，而且还能大大提高STATCOM在系统不对称条件下的生存能力。

We gain conditions for persistence for three-species of the system and global asymptotic stability for positive periodic solution of the system.

研究了一类具有扩散系数和 Holling 类功能反应的一捕两食三种群非自治捕食系统，得到了系统持久生存和周期系统存在唯一全局渐近稳定的周期解的条件。

This paper consists of three parts:We first consider the non-autonomous predator-prey system with both Beddirigton-DeAngelis functional response and dispersion. By using comparison theorem of differential equation, we study the permanance of the system. After that, by constructing suitable Lyapunov function, we obtain some sufficient condition which guarantee the existence of globally asymptotically stable almost periodic solution of the system.

本文研究三方面的内容：第一部分考虑具有扩散和Beddington—DeAngelis功能反应的捕食-食饵系统，利用微分方程比较原理得到该系统一致持续生存的条件；通过构造适当的Lyapunov函数得到了该系统存在全局渐近稳定概周期解的充分条件。

With the help of comparison theorem, sufficient conditions which guarantee permanence of the system are obtained. For the almost periodic case, by constructing a suitable Liapunov function, we obtained that the system has a unique globally asymptotically stable positive almost periodic solution. Finally, we study a multispecies predator-prey system with stage structure and Holling II type functional response.

第二部分考虑具有阶段结构的非自治扩散捕食系统，利用比较定理得到该系统持久生存的充分条件，其后在概周期情形下通过构造合适的Liapunov函数得到了保证该系统存在唯一一个全局渐近稳定的概周期解的条件。

Fortunately, Plants vs. Zombies rolls out new units and environments at a good pace, and the minigames, puzzles, and Survival mode offer some clever and challenging diversions.

幸运的是，《植物大战僵尸》会以一个很好的节奏推出新的单位和环境，并且小游戏、解谜和生存模式提供了一些聪明和有挑战性的分支。

During a recession, with consumer confidence at a low ebb, keeping your customers satisfied and retaining them is vital for survival.

摘要在经济不景气和消费者信心处于低潮的阶段里，能够使你的顾客满意并接可以留住顾客对你的生存至关重要。

Finally, I get to the issue at hand -- survival.

最后，我去手头的问题-生存。

The survival rates of the breast cancer patients with payment manners of medical care at one's own expense, state expenses and the labour insurance allowances were analyzed.

目的探讨医疗费用支付方式对乳腺癌生存时间的影响。

When your survival is at stake, pleasure and pain will be strong motivators.

当你的生存危若累卵，快乐和痛苦将是最大的动力。

Under no andheavy soil water stress, there"s a great change of Atriplex canescens"s physiologicalindexes, Tr and Cs increased while Pn, WUE and LS decreased, its growth andbiomass reduced substantially, which reveals it can hardly survive under extremelydry habitat.

在无土壤水分胁迫和重度土壤水分胁迫下各项生理指标变化显著，Tr、Cs增加和Pn、WUE、LS下降，生长量和生物量的大幅度下降，表明其在特别干旱的环境条件下难易生存。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！