查询词典 persistence

Those who are particularly keen to get their hands on a copy of a new book, for instance, may be willing to pay a higher price for it, which may explain the persistence of expensive hardbacks.

比如那些特别热衷于获得版权书的人会愿意支付较高的价格。这可以解释坚持买昂贵精装书的现象。

Those who are particularly keen to get their hands on a copy of a new book, for instance, may be willing to pay a higher price for it, which may explain the persistence of expensive hardbacks. The logic behind cheaper student editions is similar.

那些热衷于得到一本新书复刊的人，可能更乐意付一个更高的价格，这或许可以解释那些喜欢精装书的顾客的那份执着，关于廉价学生版的市场存在的道理也一样。

And there have been inklings that with persistence, Israel's Hobson's choice might work.

有迹象显示，在继续坚持下，以色列的&Hobson抉择&可能奏效。

When the young joiners see the persistence we show – and the rewards we gain - they will approach the business with more confidence.

因此，我们会先以身作则，严以律己，别人看到我们发展安利的认真态度和最终所得的回报，自是最有力的游说工具。

Persistence mechanisms of KAON are based on relational databases.

KAON的一致性维护是基于关系数据库。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

We must prevent the damage to life-maintaining function of zoology system. It must be the base line or criterion to realize the persistence development of human society.

在畜牧业发展的相关影响因素中，包括自然、政府、社会、经济等方面，我们应当认识各个社会主体(企业、政府、社会乃至个人牧户)所应当承担的责任，政府应当在制度政策上有的放矢，勇于承担责任，有所作为。

Learning english meeds persistence.

学英语要持之以恒。

"You'll find that the Zakarumites have the persistence of zombies, but without the charisma."

你会发现撒卡兰姆人对僵尸的运用有一定的坚持，但是却没有任何领导能力。

In our relations with the intermediate sections, persistence in the struggle against the die-hards is the only way to win over the waverers and give support to our sympathizers -- there is no other way.

在对中间派的关系上，只有坚持对顽固派的斗争，才能争取动摇的中间派，支持同情的中间派，否则都是不可能的。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！