查询词典 sequentially compact set

Iii By using the well-known properties of the dela vallee-poussin summability kernels and the pass principle of weakly compact operator, we study the weak compactness of C〓 on vector-valued analytic function spaces H〓, B〓, N and N〓, establish some connections between the weak compactness of composition operators and the structure properties of Banach spaces. These generalize and unify the corresponding results in the scalar-valued setting and enrich the content of the study of composition operator in another way.

第三，利用著名的de la Vallee-poussin可和核及有关算子的弱紧性的传递原理给出了向量值解析函数空间H〓、B〓、N及N〓上的复合算子的弱紧性的刻画，建立了复合算子的弱紧性与Banach空间的结构性质之间的联系，统一和推广了对应的数量值解析函数空间上的复合算子的弱紧性，这从另一种途径极大地丰富了复合算子的研究内容。

The LD side-pumping structure was designed to meet the requirement of miniaturization and spot uniformity of the laser system for weapon systems. The compact laser resonator was designed. In this design, the thermal effect is compensated by the total reflection concave mirror.

为满足一些武器装备对激光系统小型化及输出激光光斑均匀性较高的要求，通过设计LD侧面对称半环状泵浦的泵浦方式，使得输出的激光光斑形状基本为圆形，激光光斑的均匀性有了较大提高。

The factors that affect the conductibility of green compact were analyzed.

通过对Fe-Ti-C三元粉末混合物压坯的加压成形过程的研究，分析了影响粉末压坯电导性的因素。

The company's CNC machine tools in general compact structure, beautiful appearance, simple operation, with the processing of cylindrical surface, conical surface, arc noodle, end, grooving, drilling and processing Reaming various thread functions, applicable to electrical, pneumatic , industrial instrumentation, automotive, motorcycle fittings, fasteners, photography, hardware tools, plumbing pipes and other parts manufacturing and processing characteristics.

本公司的数控机床总体结构紧凑，外型美观，操作简单，具有加工圆柱面、圆锥面、圆弧面、端面、切槽、钻铰孔及加工各种螺纹功能，适用于电器、气动、仪表工业、汽车、摩托车配件、紧固件、照相、五金工具、水暖管道及其他零件制造加工等特点。

Result The K7-2 colonies were white with smooth surface, dry and compact, presented a flocculent state and trim edge, and grew in radiated shape in medium, the earthy odor could be smelled when the culture dish was opened. K7-2 thalli was in thread shape; with gram-positive, and the conidium hyphae and conidia could be seen in plate insert culture.

结果］K7-2菌落为白色，表面光滑、干燥致密，呈绒布状，边缘整齐，在培养基中呈辐射状生长，揭开培养皿可闻到土腥味。K7-2菌体为丝状，革兰氏染色阳性，插片培养可见分生孢子丝和分生孢子。

The results show that the brush-plating coating is even and compact from section plane with good toughness and adhesion. The microhardness of the coating is 230.6HV0.5 which is 3 times of cast aluminium substrate. The wear resistance of the coating is 3 times of cast aluminium substrate. But the friction coefficient of the coating is 0.70 which is more high than that of the substrate, which is favorable for the fixed conjugate between the axis sheath and the axis seat of the gear-box.

结果表明，镀层厚度分布均匀、致密，镀层与基体界面清晰，未出现氧化物夹层，镀层的韧性和结合强度均较好；测得碱性铜及铸铝基体的显微硬度分别为230.6、74.2HV0.5；碱性铜的镀制使基体表面显微硬度及耐磨性均提高了2倍多，磨损状况明显改善。

Every connected, compact Lie groups G contains a maximal torus T. This maximal torus is unique up to conjugation, and every element of G is conjugate to the element of the maximal torus.

每个连通紧李群具有极大环面子群，任二极大环面子群彼此共轭，且连通紧李群中每个元素共轭于极大环面的一个元素。

The NBT Series Straight Line Conjugate Mesh Gear Pumps enjoy the features of small size, light weight, compact structure, lower pressure fluctuation, and little noise.

我们所开发的NBT系列液压泵，采用了独特的直线共轭线的设计，具有外形尺寸小、重量轻、结构紧凑、流量脉动小、自吸性能好、噪声低等特点。

The first disadvantage of MMI device is wavelength sensitive, which leads to restricted applications. To reduce the wavelength insensitivity in optical network applications, the demand of light source with a specific wavelength is needed, especially for power splitters. For this reason, a wideband criterion for MMI splitter is proposed. The basic principle is based on reducing the interference length difference and making it shorter than the spot size for constructive mode interference. Simulation results show the spectra of proposed MMI splitter is wide enough (1.26-1.61um) to cover the fiber communication band and the size of the splitter is more compact than that of the conventional MMI or Y-branch splitter.

多模干涉元件的第一个缺点为波长敏感，此缺点会限制其在实际上的用途；因元件在网路上的应用时，通常都需要降低波长敏感性，以减低对光源波长准确性的要求；有鉴於此，本论文提出多模干涉分光器的宽频标准；基本原理是建立在缩短其多模干涉区的长度差，并使之小於建设性干涉的光点大小；透过模拟后发现，操作频宽可涵盖光纤通信全波段(1.26-1.61um)，且长度小於Y形分支结构的分光器。

Applying experiments of performance test, indoor soil training test under different field capacity and spring rape pot, a study was made on nutrient release and biological effect of water-soluble felted and coated fertilizer. The results showed that this kind of water-soluble coated material was characterized as its compact contexture, uniform thickness, fine performance of water absorption and permeability and certain degree of biodegradability.

应用性能测试、不同田间持水量下土壤培养及小白菜盆栽试验研究了其养分释放规律与生物学效应，试验表明：微水溶性包膜材料致密、整体厚薄较均一，其吸水性、透水性能优良，且具一定的生物降解性能。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。