查询词典 populations

Their finding, perhaps not surprisingly, is that the places where infections are most rampant are those with the largest populations and the worst disease-control measures.

他们的研究结果显示，传染病最猖獗的地方人口最多，同时疾病控制措施最糟糕。这一结果也许并不令人惊奇。

Shara's research interests include stellar collisions, novae and supernovae, and the populations of stars that inhabit star clusters and galaxies.

夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。

Shara's research interests include stellar collisions, novae and super novae , and the populations of stars that inhabit star clusters and galaxies.

夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。

Forces are employed, international law obligates the commander concerning civilian populations, governments, and economies.

不论美国军队部署的状态如何，国际法让指挥官负担平民、政府和经济方面的义务。

Protect the natural fish populations and food sources for bald eagles, ospreys and otters among others.

保护天然鱼类种群和食物来源的秃头鹰，鱼鹰和水獭等。

Overfished populations are small, and so they yield a small catch or even go extinct.

被过度猎捕种类的数量越来越少，带来的收入也非常有限，但是却可能为此而走向物种灭绝。

An authoritative report from the Pew Oceans Commission told them in 2003 that, of the American fish populations that had been assessed, 30% were being overfished, many of them unsustainably.

一份皮尤海洋委员会的权威报告说，已评估的美国鱼群数量的30%被过度捕捞，其中很多已不能为继。

One reason is that overfishing of sharks and related fish has reduced the size of some shark populations.

一个理由是鲨鱼和相关鱼类的过度捕杀减小了一些鲨鱼的大小。

But there are huge populations that are absolutely persecuted and have no other option.

但是有很多人是被迫害的，他们没有别的选择。

Next, regarding question two, because present uses the injection contraceptive the method to maintain this population the stability, moreover already did not have the individual to move away or the situation which poaches, for this reason we transform this populations stability to ask this population every years newborn baby quantity to subtract this year death individual the quantity differential value; Moreover from this population year quantity with this year the end of the years quantity differential value, when tends 0, namely thought that this community individual quantity is stable, thus the question stability problem transforms to ask simple targets optimization problems model building; Carries on using MATLAB to the model obtains, obtains, when did not consider when uncertainty factor influence must inject the medicine female animal quantity is 276 heads, but when had considered after twin and by duplicate injection these two uncertainty factor influence, obtains must inject the medicine female animal quantity is 352 heads, including 110 are by the duplicate injection.

其次，对于问题二由于现在采用注射避孕药的方法来维持该种群的稳定，而且已经没有个体被运走或被偷猎的情况，为此我们把该种群的稳定性转化为求该种群每年的新生幼仔的数量减去该年死亡个体的数量的差值；另外从该种群年头的数量与该年年底的数量的差值，当趋于0时，即认为该群落的个体数量是稳定的，从而把问题的稳定性问题转化为求单目标的最优化问题建立模型；利用MATLAB对模型进行求得，得出当不考虑不确定性因素影响时要注射药物的雌性动物数量为276头，而当考虑了双胞胎和被重复注射这两个不确定性因素影响后，得到要注射药物的雌性动物数量为352头，其中有110头是被重复注射的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。