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When Canadian snowshoe- hare populations hit a high recently, Colorado wildlife officials figured the lynx population would be spiking, so there'd be enough to mount a relocation effort

当看到加拿大雪兔的数量眼下达到了最高记录,科州野生动物专家们估计山猫的数量也会增加,这为重新引进提供了足够的信心。

It greatly reduces the problem of sparsity of data, because the size of the vocabulary made up of characters is smaller than that formed from words.

由于字的数量远小于词的数量,所以该分类方法与其它在词级别上的分类方法相比,有效地降低了数据稀疏带来的影响。

That may not sound like much, but in a year with record-low numbers of sunspots and long stretches of utter spotlessness, five is significant.

大卫说:上个月,我们统计到有五组太阳黑子群,这或许听起来不算什么,但是对于在太阳活动极小年中,特别是在过去两年黑子数量创出新低,甚至有时还无黑子的情况下,出现这些数量的黑子意义却有不同。

Staffordshire was the home of many potteries—so many that the region is still known today as "the Potteries".

Staffordshire曾经是陶器厂的故乡--即便是现在,这片区域也因为有相当数量数量的制陶厂而依旧出名,并被贯以"制陶的地方"。

The results above showed:(1) The cultivars of large-flowered chrysanthemum are widely distributed in Beijing area with plentiful floral types and floral colors;(2) The cultivars with the rare types and colors are urgent for protection;(3) Most of the quantitative characters obeys to the normal distribution,some important traits agreed with skewed distribution.The probability grading can assist quantitative character in establishing new grading standards;(4) Most of qualitative characters is asymmetrical in cultivars,which might be caused by unbalanced differentiation of characters or linkages coming from emphasis characters selection;(5) The floral characters are relatively stable and have comparably large influence on classification,the characters of stipule also have a certain degree of stability and can act as an reasonable supplement for cultivars classification,but the foliar characters have worse stability and can only be recognized as lower level criterion.(6) The genetic relationship among the Flat-petaled group,the Quilled-petal group and the Spoon-petaled group are closest,which followed by the Filiform-petal group because of long-term selection pressure for the specialization of the petal tip loved by most people.The Anemone-petal group has further genetic relationship with these four groups.(7) ISSR molecular marker detection indicates that the proportion of polymorphic loci of lardge-flowered chrysanthemum is higher,in which the Flat-petaled group has the highest genetic diversity level.

综合以上的研究结果表明:(1)北京地区现有大量大菊品种,且花型与花色较为丰富;(2)珍稀花型、花色品种亟需保护;(3)大部分数量性状是符合正态分布的,少数重点观赏性状迫于选择压力呈现偏态分布,概率分级法能够辅助大菊的数量性状建立新的分级标准;(4)大部分质量性状在品种群内的分布是不均匀的,可能是由菊花性状遗传分化的不均衡性或受到选育重点性状的连锁作用而造成的;(5)大菊花部性状相对稳定,对品种分类影响较大,其托叶部分也具有一定程度的稳定性,可以作为品种分类的合理补充,而叶部性状稳定性较差,在品种分类中应作为更次一级的分类依据;(6)平瓣类、管瓣类和匙瓣类的亲缘关系最近,畸瓣类品种花瓣先端特化受到人们的喜爱,长期的选择压力使其区别于3种基本瓣型,而这四种瓣型与桂瓣类在亲缘关系上较远;(7)ISSR分子标记检测表明:大菊品种多态性位点百分率较高,平瓣类品种的遗传分化最为丰富。

The ratios of the dry weight of stolon and ramet/the dry weight of genet in plot 1 and 5 are the highest, Dry weight of L.

结果表明,除人为干扰比较严重的生境外,基株大小与匍匐茎数量、单位长度匍匐茎干重之间存在极显著的正线形相关(P〈0.01),基株大小对分株的影响可能与匍匐茎数量有关;匍匐茎与分株总干重与基株干重的比值在海拔最高和最低两个样地中最大。

In this investigation, the number of maternal ramets and daughter ramets, length of stolon and spacer, distributed pattern of spacer and the relationship with community quantitative character were compared and researched between the two Potentilla. This offers basic data for more discussions to ecological and phenotypic adaptive strategy of the two population.

本文就两种委陵菜种群的母株、分株数量、匍匐茎长度以及间隔子长度及其布局及其与群落数量特征的关系进行比较研究,为进一步深入探讨这两种委陵菜种群的表型适应与生态适应策略提供基础性研究数据。

With X-ray diffraction and TEM analysis,it is proved that the microstructures of both undeformed and deformed matrixes are austenite and carbide with some striation structure in the matrixes,the amount of stripes in the deformed matrix is obviously more than that in the undeformed matrix.

通过X衍射和电子显微分析证明,变形前和变形后的基体组织都是奥氏体基体加上碳化物,变形前后的基体中均存在条纹状组织,且变形后基体中的条纹数量明显高于变形前基体中的条纹数量

Precipitation. More precipitation more species quatities of subaerial algae are.

降水量。降水量少的地区,其亚气生藻类的数量多于降水量多的地区的亚气生藻类种类数量

The number there, around 1,400, is about half that of a decade ago and a fraction of the 100,000 that roamed the subcontinent in the early 20th century.

印度的老虎数量大约为1400,比十年前减少了一半,仅仅是20世纪初大陆野生老虎总数量100,000只中的一小部分。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力