充分满足

In this paper, the adjointness of the product of two differential operators generated by a third order normal and singular symmetric differential expression in the limit-circle case is discussed. The necessary and sufficient conditions which make the product operators being the adjoint operators obtained by the matrix analysis and calculation. At the same time, the adjointness of the product of the power and adjointness operator obtained.

本文首先讨论了正则和奇异两种情况下两个极限圆型三阶对称微分算式生成的微分算子的乘积的自共轭性，运用矩阵分析和计算，得到了乘积算子为自共轭算子时边界应满足的充分必要条件，同时得到了幂算子的自共轭性、自共轭算子乘积的自共轭性等乘积算子的其它若干性质。

Industrial and commercial departments join hands to continue to promote the use of such methods as chain store, agency, distribution and second-hand shop, to give full play to modern selling method's active role in opening up urban and rural markets and expanding sales, perfect and improve various types of central wholesale markets, properly organize various types of commodity fairs, so as to better satisfy different demands of urban and rural consumers.

工商联手，继续推进连锁、代理、配送、旧货等新型营销方式，充分发挥现代营销方式在开拓城乡市场，扩大销售中的积极作用，完善提高各类中心批发市场，组织好各类商品展销会更好地满足城乡消费者不同层次的需求。

The paper is devoted to the quartic invariant algebraic curves in quadratic system.

本文在给定参数满足一定的条件下，研究了一类二次系统的四次不变代数曲线系统平衡点的稳定性态，并运用Dulac函数法给出了该系统不存在极限环的充分条件，这一研究在同类问题中具有一定的拓展性。

Roads: The quadrat from of traffic network combined with the freely planned roads fully embodies the harmony between the order and freestyle, and the system successfully divides the cargo transportation and public traffic to make a safe, natural and comfortable walking system.

道路：满足产业功能需要的方格式道路与满足生活功能需要的自由式道路组合，充分体现秩序与自由的和谐；道路系统有效地实现货运交通与生活交通分流，营造了安全、自然、舒适的步行系统。

Once a dual unit commitment obtained within Lagrangian relaxation framework is judged by this feasibility condition to be infeasible, reselect the dynamic planning route with non ramp rate constraints by using the information of the dual solution, i.

当利用充分必要条件判断对偶机组组合不可行时，则利用对偶解的信息重新选择非爬升约束机组的动态规划的路径，即调整它们的启停序列，使之满足充分必要条件，最后以此解决经济分配问题。

At last, we provide the upper semi-continuity and compactness of the spectral scalar solution set mapping under some suitable conditions, and the necessary and sufficient conditions to guarantee the lower semi-continuity of the spectral scalar solution set mapping by virtue of the concept of essential solution.

最后，给出了谱标量解集映射满足上半连续且紧的充分条件及下半连续的充分必要条件。

In either case of g ∈ C^2 or gC^2, this paper proposes a convenient method for building a T-S fuzzy system and gives a loose sufficient condition of its approximation ability, when the fuzzy sets are uniformly distributed, continuous and normalized.

本文在逼近函数g∈C^2及gC^2两种情况下给出了一种当模糊集满足均匀性、连续性、正规性条件下T-S模糊系统的构造方法以及该T-S模糊系统逼近能力的充分条件。该构造性方法简单易行且其逼近能力充分条件的保守性低。

In this paper,by the matrix method,a necessary and sufficient condition for two n-dimensional synclastic simplexes to be able embedded in the n-dimensional Euclidean space is obtained,as well as for two group finite point sets.

该文利用矩阵的方法，获得了两个同向的n维单形同时等距嵌入E~n维欧氏空间的一个充分必要条件是：对于预给(n+1)~2个距离，满足一组具有行列式形式的不等式组det，由此可以得到两组等数量的有限点集合到E~n维欧氏空间中等长嵌入的一个充分必要条件。

Centralized the iformation flow in detecting should satisfy afore-mentioned requirements, the haemal information network that builds a stability besides the requirement is exchanged with satisfying the real time of data outside, still should use the haemal information that accords with uniform standard to run software in order to assure centralized detect the unity of flow and can accuse, in addition, still should build regional integrated database on this foundation in order to assure the normative sex of data and consistency.

集中化检测中的信息流要满足上述要求，除了要求建立一个稳定的血液信息网络以满足数据的实时交换外，还应使用符合统一标准的血液信息管理软件以保证集中化检测流程的统一和可控，此外，在此基础上还应建立起区域性的综合数据库以保证数据的规范性和一致性。1.2国外信息保障方面的经验欧盟、美国、日本等发达国家都对信息技术给予了充分重视和大量投入，如美国采供血机构中的红十字会系统为实现全美地区的集中化检测，于1991—19。。。

On condition that the nonlinear uncertain functions are gain bounded, a sufficient condition, which is dependent on the maximum value of the time derivative of time-varying delay, is presented for the existence of the controller.

在非线性不确定性满足增益有界条件下，得到了该类时变时滞系统依赖於时变延迟导数的最大值的满足鲁棒性能的一个充分条件。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失