绝灭

基本解释 (translations)

extinguishment

与绝灭相关的网络例句 [注：此内容来源于网络，仅供参考]

This paper sets the boundary of Permian-Triassic on the bottom of ammonoid Hypophiceras Zone or"transitional bed".

对生物在界线附近大规模绝灭的外部原因，本文认为是剧烈的火山喷发和古地理变迁造成的。

Time of our national annihilation mostly 20's in 20 centuries, the annihilation get some more early.

我们国家绝灭的时间大致在二十世纪的二十年代，绝灭得更早一些。

In the process of calculation, by comparison theorem and strict calculation, some sufficient conditions for persistent and extinct of three populations are obtained.

推导过程中主要应用了比较定理，并且通过严密的计算，得到了三种群持续生存性和绝灭性的充分条件。

In view of geological records preserved from different regions of the world are not identical, it's suggested that, when correlating the Ordovician-Silurian boundary, at the global boundary stratotype section, the FAD of N. persculptus be selected as the biomark, the transgression event identical to the FAD of N. persculptus as the auxiliary physical mark and the mass extinction and chemical anomaly events respectively as the auxiliary biomark and chemomark. In some regions with few graptolite, the Ordovician-Silurian boundary should be indicated by the auxiliary marks, such as the transgression event, mass extinction or chemical anomaly event, with the other fossil such as conodont nearest to other geological events as the provincial biomark for correlation. In other regions with much stratigraphic hiatus originated from the regression, the Ordovician-Silurian boundary should be marked by the regression-transgression event nearly relevant to the N. persculptus Zone.

鉴于不同地区留下的地质记录不完全相同，奥陶/志留系界线对比方法不同：在界线层型剖面上，以N.persculptus的首现为生物标志，以与之基本一致的海侵事件为辅助的物理标志，以生物集群绝灭事件和化学异常事件为辅助的生物和化学标志；在笔石极不发育的地区，则以海侵事件、生物绝灭事件或化学异常事件为辅助标志，以与其相距最近、并且具有区域对比性的其它门类化石作为界线对比的生物标志；对于由于海退事件所造成地层缺失很多的地区，则以海退/海侵事件作为划分界线的物理标志，并以相映的海侵事件的开始作为奥陶/志留系的分界。

The patterns in this region of domain are so twisted and convoluted that everything goes extinct.

这一领域中的模式，是如此扭曲费解，让这里的万物都进入绝灭。

The eastern curlew is the largest species; the common, or Eurasian, curlew, almost as large, is the largest European shorebird.

普通杓鹬(N.arquata，欧亚杓鹬)是欧洲最大的滨鸟；爱斯基摩杓鹬是世界稀有鸟类之一，已濒于绝灭

There is no remaining chi between cycles in the Tao; and so anything remaining would go extinct or in other terms falls into disanimation.

在道的2个周期间隔之间是没有 chi （译注：发音为"气"，为了避免和四大元素中的气所混淆，故而在此保留原文）存留下来的，因此任何留下来的事物将会进入绝灭，或者换句话说，跌入死亡。

A predator model with refuge and toxicity is studied. By constructing a suitable Dulac function, it is shown that there is no limit cycle in the first quadrant, thus the globally stability of the equilibrium is proved. Further more, the paper analyzes the influence of refuge, toxicity and harvesting. It is amazing that ① if the death rate of predator is big or the harvesting effort is big, the existence of the predator is unrelated with refuge; if the death rate of predator and the harvesting effort are small, and the refuge is small enough, the population of both species is increased as the increase of refuge;② if d2=0, the increase of d1 has no influence on the prey population, while the population of predator is decreased.

研究一类有避难所、毒素作用和外界捕获影响的捕食系统，通过构造恰当的Dulac函数，证明系统在第一象限没有极限环，从而证明了平衡点的全局稳定性；分析了避难所、毒素、捕获作用对该系统最终种群数量的影响，发现：①当捕食者的死亡率大或其被捕获得多时，两种群的绝灭与避难所的存在无关；当捕食者的死亡率小、被捕获得多且避难所足够小时，随着食饵避难所的增加，捕食者种群数量也随之增加；②当毒素d2=0时，毒素d1的增加对食饵种群最终数量没有影响，而使捕食者种群数量下降。

In viewof geological records preserved from different regions of the world are not identical, its suggested that, whencorrelating the Ordovician-Silurian boundary, at the global boundary stratotype section, the FAD of N.persculptus be selected as the biomark, the transgression event identical to the FAD of N. persculptus as theauxiliary physical mark and the mass extinction and chemical anomaly events respectively as the auxiliarybiomark and chemomark. In some regions with few graptolite, the Ordovician-Silurian boundary should beindicated by the auxiliary marks, such as the transgression event, mass extinction or chemical anomaly event,with the other fossil such as conodont nearest to other geological events as the provincial biomark forcorrelation. In other regions with much stratigraphic hiatus originated from the regression, theOrdovician-Silurian boundary should he marked by the regression-transgression event nearly relevant to the N.persculptus Zone.

鉴于不同地区留下的地质记录不完全相同，奥陶／志留系界线对比方法不同：在界线层型剖面上，以N.persculptus的首现为生物标志，以与之基本一致的海侵事件为辅助的物理标志，以生物集群绝灭事件和化学异常事件为辅助的生物和化学标志；在笔石极不发育的地区，则以海侵事件、生物绝灭事件或化学异常事件为辅助标志，以与其相距最近、并且具有区域对比性的其它门类化石作为界线对比的生物标志；对于由于海退事件所造成地层缺失很多的地区，则以海退／海侵事件作为划分界线的物理标志，并以相映的海侵事件的开始作为奥陶／志留系的分界。

The extinction or appearance of these Ostracoda always occurred in a short time interval, and can be correlated locally and globally, so they are of importance in bioeventstratigraphy. This article listed six such biological events in Qaidam Basin and discussed their causes. The extinction of Cetacella reflected temperature decrease at global scale and changes of palaeoclimate zones during the latest Jurassic and the earliest Cretaceous; The rapid decline of Cypridea in the earliest Cretaceous may be a result of the strikes of small planets; at the latest middle-Eocene Austrocypris became extinct, and at Oligocene Hemicyprinotus disappeared. These events related to the changes of the geological conditions at that time. The explosion of Cyprideis at the middle-Miocene was because the rise of Qinghai-Xizang Plateau which resulted in the dry climate and development of salt lakes.

这些水生生物的绝灭或发生均很迅速，在区域或全球范围内均可对比，具有生物事件地层学意义：Cetacella属的绝灭可能是侏罗、白垩纪之交全球性的古气候降温和气候带变化在柴达木盆地的反映；早白垩世之后Cypridea的迅速衰退是地外因素灾变的结果；中始新世晚期的Austrocypris的绝灭、渐新世Hemicyprinotus的绝灭都与当时地质条件的改变存在著内在的联系；中中新世Cyprideis的爆发推断是青藏高原隆升，导致气候乾燥、湖水咸化的结果；而晚更新世晚期1。

与绝灭相关的网络解释 [注：此内容来源于网络，仅供参考]

cycadeoid：(已绝灭的) 拟苏铁目( 或本内铁树目) 植物

cycad | 苏铁类 | cycadeoid | (已绝灭的) 拟苏铁目( 或本内铁树目) 植物 | cycadophyte | 苏铁亚纲植物

EW：野外绝灭

国 际上目前将墨西哥的狼列为野外绝灭(EW),将葡萄牙和西班牙的狼列为低危(LR/cd),将意大利的狼列为易危(VU)(IUCN,1996). 国际濒 危物种公约(CITES)将狼这一种列为附录 II种类,且将不丹、尼泊尔、印度和巴基斯坦等国狼的种群列为附录 I种类.

extinct nuclide：绝灭核类

绝种动物 extinct animals | 绝灭核类 extinct nuclide | 绝灭放射性核类 extinct radionuclide

extinction：绝灭

在进化型式中,绝灭(extinction)表现为线系的终止,即物种的死亡. 绝灭在进化过程中是一种正常的现象,它影响着进化的速率和进化的趋向. 通常,地史上的大绝灭往往伴随着大的适应辐射,表现为物种及其以上分类单元的替代及替代的规模.

ecological extinction：生态绝灭

公害 public nuisance | 生态绝灭 ecological extinction | 生态系统 ecosystem

extinguisher：消失基因,绝灭基因;灭火器

extine 花粉外壁;芽胞外膜 | extinguisher 消失基因,绝灭基因;灭火器 | extinguisher loci 消失基因座,绝灭基因座

extinguisher loci：消失基因座,绝灭基因座

extinguisher 消失基因,绝灭基因;灭火器 | extinguisher loci 消失基因座,绝灭基因座 | extra column effect 柱外效应

Phyrexian Negator：非瑞克西亚绝灭兽

64Phyrexian Monitor非瑞克西亚监察员UD | 65Phyrexian Negator非瑞克西亚绝灭兽UD | 66Plague Dogs疫病犬UD

pairwise comparison：绝灭

大型线性方程组:large linear systems | 绝灭:pairwise comparison | 解体:disjoint.

extinct taxon：绝灭

1788,"extinct lake","绝灭湖","消灭湖" | 1789,"extinct taxon","绝灭タクサ" | 1790,"extinction","绝灭"