查询词典 trade off

The findings indicated that the Sichuan Hill Partridge might face the well-documented trade-off between food resource and predation risk when utilizing habitat.

四川山鹧鸪在利用栖息地时可能面对食物资源与天敌风险的权衡。

This way, the Twi'leks have something to give the criminals, and still retain control of the ryll mines. Unfortunately many Twi'leks, mostly female, bare the brunt of this despicable trade-off.

提列克人向他们缴纳一些东西，通过这种方法来保留对赖尔矿场的控制权，不幸的是，许多提列克人，特别是女子，在这场卑鄙的权衡交易中首当其冲。

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。

It contains oleocanthal, a natural compound that, like ibuprofen, blocks pain-producing and inflammatory substances -- but without the risk of stomach upset. While daily oleocanthal doses aren't the painkiller's complete equal, they could lower your risk for heart disease, cancer, arthritis and possibly Alzheimer's. Quite a trade-off.

它包含oleocanthal，一种天然化合物-如布洛芬ibuprofen，能够阻止疼痛和炎-症物质的产生-但没有胃部不适的风险-虽然每天oleocanthal并不能够与服用止-药等效，但它们可以降低心脏病，癌-症，关节炎和可能的风险老年痴呆症-这是一个很好的折中选择。

This trade-off between sharpness and wisdom has led psychologists to suggest that "maturity quotients" be adopted for adults.

敏锐和智慧之间的这种消长，已经使得心理学家们提出了在成年人中采用&成熟商&这一概念。

This trade-off between sharpness and wisdom has led psychologists to suggest that "maturity quotients"be adopted for adults.

敏锐和智慧之间的协调，心理学家们就此提出了在成年人在采用&成熟商&这一概念。

This trade-off between sharpness and wisdom has led psychologists to suggest that "maturity quotients"M.Q.

例如45岁时你的词汇量是你刚从大学毕业时的3倍。60岁时你大脑中储存的信息几乎是你21岁时的4倍。

This trade-off between sharpness and wisdom has led psychologists to suggest that "maturity quotients"M.Q.

敏锐和智慧之间的协调，心理学家们就此提出了在成年人在采用&成熟商&这一概念。

This trade-off between shar e and wisdom has led ychologists to suggest that "maturity quotients"be adopted for adults.

敏锐和智慧之间的协调，心理学家们就此提出了在成年人在采用&成熟商&这一概念。

There can be no trade-off between freedom and security, because the freedoms they prioritise trump everything.

自由和安全是无法取得平衡的，因为他们优先考虑的是自由--自由是第一位的。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。