查询词典 extinction

Scattering characteristics are studied of inhomogeneous cylinders immersed in an absorbing medium illuminated normally by plane waves. Scattering and extinction cross sections are derived, and the efficient algorithm is presented. Scattering matrix is simulated and discussed.

系统地解决了吸收介质中非均匀柱粒子对垂直入射平面波的散射问题，包括散射场、散射截面、消光截面的解析解，提出了快速、有效的计算方法；数值模拟了均匀、非均匀圆柱的散射矩阵，并与已有文献发表结果对比。

With the method of differential optical absorption spectroscopy, aerosol extinction coefficient was measured.

在研究、分析国外学者的研究基础上提出采用单光路法并结合大气在550nm处的能见度校准的方法测量气溶胶消光系数的研究计划。

It is based on the analysis of reflectometric interference spectrum and by this means, optical constants, such as extinction coefficient, refractive index, absorption coefficient and thickness, can be calculated with a high precision.

该方法是一种高精度的测量方法，与透射光谱分析法相比，反射干涉测量方法对于薄膜系统的载体要求较小，可以是透明载体，也可以是非透明基底，可以是金属载体，也可以是光纤端面。

Where A is absorbance;ε is molar absorptivity or extinction coefficient.

其中 A 为吸光度，ε是摩尔吸收光系数或消光系数。

Water-soluble pen, pen gas extinction because of its special achromatic effect, by the vast numbers of craftsmen love.

水溶笔、气消笔由于它特殊的消色效果，深受广大手工艺者的喜爱。

For the sake of excogiating infrared interferents smoke technology which is the same with outer space war field, using for reference of the mature technology and experiences of infrared interferents under aerosphere, the formulation and near infrared extinction performance of the pyrotechnic infrared and pulverous smoke interfrets are experimental studied under entirvionment to vacuum and micro-gravitation.

为研究出适用于外层空间战场的抗红外烟幕技术，以大气层下抗红外烟幕的成熟技术和经验为基础，对真空和微重力环境下燃烧型和粉未型抗红外烟幕干扰剂的配方和近红外消光性能进行了实验研究。

They can agitate, by pointing out the effects of modern war and the danger of the extinction of Man.

他们可以行动起来，指出现代战争的影响和人类灭绝的危险。

Aki Ross. Determined and capable, Aki strives as Earth's last hope against extinction.

有决心并且有能力的阿基作为地球的最后希望而努力。

In open access model, the result shows that resources will face extinction crisis if the fishery is not controlled well. In present value maximization model, the albacore fishery would sustainable management. This result is valuable for the fishery management authorities to maintain the development of fishery and cherishing ocean resources at the same time.

最后，本文分别对开放式渔场模型及现值极大化模型进行模拟分析，模拟结果显示，开放式渔场若不稍加管制，其资源有可能面临灭绝的危机，而现值极大化模型在适度的捕捞下，将可使渔业永续经营，此结果可提供渔业管理者之参考，使其发展渔业的同时也能珍惜海洋资源。

Fishing is the main reason that 18 of 21 species of albatross are threatened with extinction, he explained.

捕鱼是使二十一种信天翁中的十八种濒临灭绝的主要原因，他解释道。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。