查询词典 domain

R~n(n≥0) is a bounded domain with smooth boundaryΩ;ΔisLaplace operator; u and v, respectively, denote populaton densities of prey andpredator species, inhabit the domainΩ; a_i, b_i, c_i, D_i(i=1,2) are positive constants.the form of boundary parameter B is?

R~n(n≥0)是边界Ω充分光滑的有界区域；△为Laplace算子；u，v分别表示区域Ω中食饵和捕食者的密度，参数a_i，b_i，c_i，D_i(i=1，2)均为正常数，而边值参数B形式为这里的？

In this paper, several kinds of Impedance Boundary Conditions used in frequency domain and time domain are investigated.

本文主要研究了频域和时域的几类阻抗边界条件的推导与应用。

At last, it is proved for the two systems that when the control domain U is a bounded, closed set, the reachable set is the same as that when the control domain is the convex of U.It is an advancement for original results.

最后证明了当控制区域U是有界闭集时上述两个系统的等时区域与控制区域是U的凸包时的等时区域相同，推广了有限维的结论。

In[5],combining the algebraic topology method,we have proven that conjunction matrix is complete topological invariant of bounded closed domain in plane under F-homeomorphism.so,for any two bounded closed domain in plane ?

主要原因在于拓扑不变量通常比较难算，没有比较实用的方法来恰当地提取图形的拓扑不变量，尤其是对较复杂的图形而言更是困难重重。

Thirdly, we will concentrate on the multiplicity of the positive and minimal sign-changing solutions of the following quasilinear equations with Hardy-Sobolev critical exponent in bounded domain By Lusternik-Schnirelmann category theory, we showthe relation the number of positive solutions with the topology of the domain.

再次研究有界区域上具有Hardy-Sobolev临界指数的拟线性方程的正解与极小变号解的多重性，运用Lusternik-Schnirelmann理论，给出方程正解与区域的拓扑性质的相关性。

Recently, bruit Baidu is collected to what stand newly very strict allegedly a lot of normal websites also did not collect;, especially the website of Cn domain name is the serious blow that sufferred Baidu more. The streak before Cn domain name still is given screen to spend a paragraph of time by Tecent QQ, look the day of stationmaster is uneasy nowadays.

最近，谣传百度对新站的收录非常严格了；据说很多正规网站也不收录了，尤其是cn域名的网站更是遭到了百度的严重打击。cn域名前阵子还被腾讯QQ给屏蔽过一段日子，看来如今站长的日子并不好过。

The buffeting of bridges can be analyzed in frequency domain and in time domain.

桥梁的抖振分析，有频域和时域两大类方法。

Nevertheless, use of a domain name as a sign in commerce may confer legalrights on the domain name registrant, according to the applicable national law, for example by means of unfair competition law.

但是，根据可适用的国家法律，比如，不正当竞争法，将一个域名作为符号用在商业上，可能授予域名注册人以法律权利。

To reduce the number of cross certifications, a special CA—bridge CA is specially used to build cross certifications with root CAs of every PKI domain. Through bridge CA, to set up trust relationship with other PKI domains, every PKI domain only needs to make cross certification between its root CA with the bridge CA.

但各CA之间相对独立、分散，缺少统一的管理与接口，各CA之间无法连通，信任无法传递，造成了较多的信任孤岛，给基于PKI技术的应用的拓展造成了很大困难，也限制了PKI技术的普及与良性发展。

In the spatial domain,canonical projection of the Wigner distribution function of the associated pupil function to show the insensitivity of the point spread function to the defocus-related aberrations is mainly used,and in the frequency domain,it is shown that the optical transfer function of such a system is also insens.

空域中，主要利用维格纳分布函数的正则投影来分析系统的点扩展函数对离焦像差的变化不敏感特性；频域中，则利用考纽螺线的图解方法来分析系统的光学传递函数对离焦像差的变化不敏感特性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。