查询词典 extinction coefficient

A novel design scheme for digital optical switch with high extinction ratio by employing S curve waveguide at the end of the Y branch ii proposed. Higher extinction ratio then that of the device without S curve waveguide is obtained by applying certain synchronous voltage to tie Y branch and the curve electrode of tie S curve waveguide.

文章提出一种关于非对称电极低串扰数字光开关的新型设计方案，在Y分叉后端引入S弯曲波导，通过在Y分叉处的非对称电极和弯曲波导的弯曲电极处施加一定的同步电压，实现了比没有S弯曲的开关更低的串扰。

"This represents the first global extinction of a large vertebrate for over 50 years, only the fourth disappearance of an entire mammal family since AD 1500, and the first cetacean species to be driven to extinction by human activity."

这是50多年来第一大型脊椎动物的灭绝，也是自公元前1500年以来第四次整个哺乳动物家族的消亡，第一个因为人类活动灭绝的鲸类物种。

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。

Take a sulfosalicylic acid mole fraction as the abscissa, the extinction is the y-coordinate, makes the extinction constitutional diagram.

以磺基水杨酸摩尔分数为横坐标，吸光度为纵坐标，作出吸光度组成图。

Further more, we get the necessary and sufficient conditions for the two-dimensional discrete system, where the permanence and extinction of the system are decided and only decided by the relationship of the non-delay coefficients in the system. Further, we for the first time find the equivalent permanence and extinction between the two-dimensional discrete Lotka-Volterra and its corresponding continuous system.

进一步，本得到了此类离散系统二维自治情形下，其持续生存和灭绝分别等价于系统非时滞系数构成的相应不等式；通过比较本文中二维自治Lotka-Volterra竞争系统的连续和离散两种情形的有关结论，首次发现这两类系统具有等价的持续生存和灭绝性质，建立了这两类系统之间的联系。

This product also has the ability of light extinction, so it can be used as extinction filler for flat or semi-gloss powder coatings to reduce the usage of flatting agents.

本产品还具有一定的消光作用，可作为半光和无光粉末涂料的消光填料，可减少消光剂的添加量。

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。

Various powder fillers are: ultra-fine barium sulfate, barium sulfate modified ultra-fine, mica, magnesium strong powder, calcium carbonate, talc, high light calcium, calcium extinction, high optical barium, barium extinction, precipitated barium sulfate, calcined kaolin, Featured washed kaolin, titanium dioxide, lithopone, ultra-white light calcium carbonate and so on.

各种粉体填充料有：超细硫酸钡，超细改性硫酸钡，云母粉，镁强粉，碳酸钙，滑石粉，高光钙，消光钙，高光钡，消光钡，沉淀硫酸钡，煅烧高岭土，精选水洗高岭土，钛白粉，立德粉，超白轻质碳酸钙等等。

For this reason, the "mathematical artefacts" of extinction estimates were not sufficient to be certain about the current state of extinction, said MacLeod.

"为此，灭绝估计的数学假象是不足以确定目前的物种灭绝形势的。"麦克劳德说。

The Permian extinction-the worst extinction event in the planet's history-is estimated to have wiped out more than 90 percent of all marine species and 70 percent of land animals.

二叠纪的生命大灭绝，是我们这个星球上最可怕的一次物种灭绝，海洋的90%的生命以及陆地上70%的生命都消失了。

That snake Alaric named Archbishop...

庇护。。。那个毒如蛇蝎的Alaric被命名为大教主。。。

You have done lots of magical things to be amazed at.

你做了很多神奇的事物感到惊讶。