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The exact form of exterior boundary value problems for plane potential problem is established with variational principle.

使用变分法确立平面 Laplace外问题的确切形式；在此基础上，为了避免使用无限区域上的 Green公式，通过构造紧支集上的无穷可微函数，获得满足非齐次控制微分方程的特解的重要结果。

From [1], Every transition function is a positive strongly continuous semigroup of contractions on l\, but it isnt a strongly continuous semigroup on l_∞- In fact, the sufficient and necessary condition for a transition function to be a strongly continuous semigroup on l_∞ is that the q—matrix Q is an uniformly bounded q—matrix on l_∞- This is the trivial case.

由Anderson[1]知道转移函数P是l_1空间上正的强连续压缩半群，但P一般来说不是l_∞空间上的强连续半群，而P是l_∞上强连续半群的充要条件是q—矩阵Q是l_∞。

Let A" denote the commutant of a bounded linear operator S on H and R denote the collection of all operators in A" which are compact and upper triangular operators with diagonal sequence being zeros. In this paper, we show that if A"= CI + R, the K_0-group of A" is isomorphic to the integer group.

本文指出若H上的有界线性算子S的换位代数A′=CI+R，其中C是复数域，I是H上的单位算子，R是所有与S可交换的对角线为0的紧上三角有界线性算子的集合，则K_0A′

The gauge is formed by a bourdon tube pressure gauge and a adjustable resistance transmitter. When the pressure is changing, the tube end deformed, and the pointer is toshow the pressure value through the driving system, at the same time, the brush is slippingon the resistance to transmit the pressure values to resistant values, which is transmited tothe secondary gauge to show the relative pressure value.

仪表由一个弹簧管压力表和一个滑线电阻式传感器组成，当被测压力变化时，弹簧管端产生位移，一方面通过传动系统使指针在度盘上指示相应压力，另一方面带动电刷在电阻上滑行，使被测压力值的变化转换为电阻值的变化，并传至二次仪表上指示相应的压力。

The gauge is formed by a bourdon tube pressure gauge a adjustable resistance transmitter. When the pressure is changing, the tube end deformed, the pointer is toshow the pressure value through the driving system, at the same time, the brush is slippingon the resistance to transmit the pressure values to resistant values, which is transmited tothe secondary gauge to show the relative pressure value.

仪表由一个弹簧管压力表和一个滑线电阻式传感器组成，当被测压力变化时，弹簧管端产生位移，一方面通过传动系统使指针在度盘上指示相应压力，另一方面带动电刷在电阻上滑行，使被测压力值的变化转换为电阻值的变化，并传至二次仪表上指示相应的压力。

Let R be an arbitrary commutative ring with identity, gl the general linear lie algebra over R consisting of all n × n matricesover R and with the bracket operation = xy -yx, t the lie subalgebraof gl consisting of all n×n upper triangular (resp., strictly upper triangular ) matrices over R and d the lie subalgebra of gl consisting of all n×n diagonal matrices over R.

在第三章中，对R是交换环的情形，讨论了典型李代数的导子代数的结构问题：设R是一个含幺交换环，gl是R上一般线性李代数。t是gl的所有n阶上三角矩阵(相应地，严格上三角矩阵)构成的子代数，d是gl的所有n阶对角阵构成的李代数。

Young branchlet, leaf, and corolla with dense, deep brown stellate and verticillate hairs; corolla 2.2-2.8 cm.

叶二形(不同的能育枝上的叶片在外形上在不育枝上的东西)；榕果梨形给多少球状，或圆筒状，3-5厘米直径 7 T 。

The study break though the limit of our idea and technology, discuss thefeasibility of getting increase output about 20%.

本研究还力求突破长期以来对我们观念上和技术上的束缚，探讨了在现有新型干法主机配置基本不变的基础上，取得提高产量近20％的可行性。

In Alma it states,"Yea, he had been strengthening the armies of the Nephites, and erecting small forts, or places of resort: throwing up banks of earth round about to enclose his armies…the Nephites were taught…never to raise the sword except it were against an enemy… they had cast up dirtround to shield them from the arrows…the chief captains of the Lamanites were astonished exceedingly, because of the wisdom of the Nephites in preparing their places of security…they knew not that Moroni had fortified, or had built forts of security in all the land roundabout …the Lamanites could not get into their forts of security…because of the highness of the bank which had been thrown up, and the depth of the ditch which had been dug round about…they began to dig down their banks of earth…that they might have an equalchance to fight…instead of filling up their ditches by pulling down banks of earth, they were filled up in a measure with their dead…And caused them to erect fortifications that they should commence laboring in digging a ditch round about the land…And he caused that they should build a breastwork of timbers upon the inner bank of the ditch: and they did cast up dirt out of the ditch against the breastwork of timbers".

在阿尔玛书说：『他加强了尼腓人的军队，建造了小型堡垒，或凭藉处所；在周围筑起了堤岸来拱卫他的军队……尼腓人已被教导……除非抵抗敌人，决不举起剑来……他们在周围堆上了污泥来防避拉曼人的箭……这时拉曼人的总队长们非常的吃惊，由於尼腓人在准备他们的安全处所上所表现的智慧……因为他们不知摩罗乃已在周围各地的每一个城巿建筑了防御工事，或防御堡垒……拉曼人除了经由入囗处外，无法进入他们的防御堡垒，因为那土岸已堆得很高，那周围的壕沟已掘得很深……他们就开始去掘他们的土岸，使他们也能得到一条通往他们军队的小路，使他们能有一个均等的作战机会……非但没有推倒土岸来垫没他们的壕沟，反而将他们死者和伤者的身体垫进了不少……并吩咐他们建筑防御工事……他吩咐他们在濠沟的内堤上建造一道木头的胸墙；他们从濠沟中挖出污泥来，靠著木头胸墙堆起来

The professional content management system, including the papers submitted papers to amend, review papers and user management In the development process, the attention to bring it into conformity with the operation of business processes and systems to the comprehensive, universal, making the system not only applies to an educational institution In the development of methods of choice and chose a life cycle with the prototype of the method of combining law, follow the system research, systems analysis, system design and implementation of four major stages of system design, and in the specific design, to take the evolution of Prototype, with the use and users of the system have deepened the understanding of a certain part or parts of re-analysis, design, implementation In the development of the choice of language, using mainly carried out ASP programming language development, the use of SQL databases, so as to ensure data integrity and consistency This results mainly from system analysis, system design, systems implementation and use of several areas are introduced

本系统管理内容专业，包括论文提交、论文修改、论文审核以及用户管理等等。在开发过程中，注意使其符合操作的业务流程，并力求系统的全面性、通用性，使得本系统不只适用于一家教育机构。在开发方法的选择上，选择了生命周期法与原型法相结合的方法，遵循系统调查研究、系统分析、系统设计和系统实施四个主要阶段进行设计，而在具体的设计上，采取了演化式原型法，随着用户的使用及对系统了解的不断加深，对某一部分或几部分进行重新分析、设计、实施。在开发语言的选择上，主要利用ASP 编程语言进行开发，使用SQL数据库，从而保证了数据的完整性与一致性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。