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However, methods and references for difference equation are relatively less. The new method proposed in this paper transfer the complex boundary value problem into the existence and uniqueness of the solution of the linear equations. For linear case , we obtained the necessary and sufficient conditions for the existence and uniqueness of the solution for the BVP; For the nonlinear case ,we got a series of new sufficient conditions by using contraction mapping theory and cone theory .

而差分方程边值问题的研究方法和文献还很少，文中新的研究差分方程边值问题的方法是将复杂的边值问题求解转化为代数理论中的线性方程组解的存在和存在唯一问题；对线性情形，较容易地获得了边值问题的解存在以及唯一的充分必要条件，而对非线性情形，则通过压缩原理和锥理论等各种不动点定理，获得了一系列新的充分条件。

For we pay a price for everything we get or take in this world, and, although ambitions are well worth having, they are not to be cheaply won.-----Lucille Maud Montgomery

我们所获得的这个世界的任何事物都需要我们付出代价，尽管我们值得拥有雄心，但一颗雄心却不能轻易获得。

The Prime Minister had been to Afghanistan on his way to Beijing - the Afghan bronze medallist in Taekwondo was their first ever medallist, he said, and was a huge source of pride.

在来北京之前，首相去了阿富汗，他说阿富汗运动员在跆拳道中获得的铜牌是他们在奥运会上获得的首枚奖牌，是令他们非常骄傲的事情。

The weight and protein content of the microsomes from different evolutionary animal and tissue cells were first determined, and the weight of microsome varies obviously and the protein content of microsome in unit is almost the same.

本文还首次系统比较了不同组织细胞和不同进化程度动物细胞的微粒体获得率及蛋白含量，得到了不同细胞微粒体获得率明显不同、单位重量微粒体蛋白含量却基本相同的结果，表明不同细胞ER含量不同，而单位ER内蛋白含量基本相同。

We played well in the first half, we deserved to take the lead as we should have had a penalty when Grandoni mistimed his tackle on Ambro.

在上半场我们踢的不错，我们理应获得领先因为我们也应当获得惩罚的补偿当格兰多尼不合适宜的抓住了安布洛。

In the 1990s, when his friend Mahathir Mohamad was prime minister, the firm got concessions to generate electricity using subsidised gas from the state oil firm, which the state electricity firm was obliged to buy.

在上世纪90年代，当他的好朋友马哈蒂尔当总理时，公司获得使用国家石油企业的补贴可燃气发电的特许权，而国家发电企业则要通过购买才能获得可燃气。

People's characters have been molded more by their experiences in life than by their education.

人们性格的塑造更多是从生活经历中获得的，而并非从教育中获得的。

The traditional farmer leeches on to monarchism and depends on bureaucratism; his weak position obtains from the person depend relation in political.

并尝试揭示这个"自主治理网络"的具体内容和运行机制，获得了一些线索，它们是： 1、传统农民依附于君主王权，依赖于"官僚主义"，他的弱势地位是经过政治上的人身依附关系而获得的。

The magmatic sequence includes, from older to younger, early-stage granite and monzonite , tonalite (with preserved amphibolite enclaves), trondhjemite, basic dyke swarm and quartz monzonite sills.

目前除斜长角闪岩包体和基性岩墙群尚未获得同位素年龄外，其他各期侵入体均已获得单颗粒锆石U-Pb测年数据。

The proposed method first uses common subtractive clustering locating method to acquire video object position and moving object number of each frame. Then, the proposed algorithm uses fuzzy C-means clustering algorithm to further cluster the moving object foreground pixel samples. Finally, matrix analysis theory for calculating eigenvalues and eigenvectors of covariance matrix is applied to compute the object scale and orientation parameters.

该算法在减法聚类算法预定位目标位置及获得目标个数的基础上，进一步采用模糊C均值聚类对目标前景样本进行归类，最后通过对目标前景样本协方差矩阵特征值和特征向量的分析获得目标的尺度及方向参数，从而实现对视频运动目标的定位。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。