查询词典 Development Section

In the third chapter,We study some geometric properties and spectral propertiesof the Jacobi operator on a solvable extension G of Heisenberg groups H.In the firstsection,we give the definition of G and some fundamental geometric properties on G.Inthe second section,we discuss the Integrability of certain subbundles and the geometricstructure of the induced foliations in case of integrability.In the third section,we studythe spectral properties of the Jacobi operator of G.

可解李群与类对称空间亦密切相关，Damcek-Ricci空间即是广义Heisenberg的一可解扩张李群，在第三章中，我们构造且研究了Heisenberg群的一可解扩张李群G的几何性质，第一节讨论了G的曲率，李指数映射，整体坐标等基本几何性质；第二章研究了TG的某些子丛的可积性及可积时诱导叶片的几何结构；第三节给出了G的Jacobi算子的特征值和相应的特征子空间。

On the base of the characteristics of the plate frame, a new process that produces plate as section by section is designed in this thesis and any type of plates can be manufactured by one suit of dies through this process.

全焊式板式换热器克服了普通板式换热器的缺点，在国外得到了广泛应用。本文根据引进的国外产品，设计制造了一条用来生产全焊式板式换热器板片的自动化冲压生产线。

Through flow analysis for gas flow in a Laval nozzle and a equal cross section area friction composition pipe, a method for determining a equal cross section friction pipe length and some factor have been put forward.

通过对气流在拉伐尔喷管与等截面摩擦组合管中的流动分析，提出了确定等截面摩擦管的长度方法及其考虑因素。

Traditionally this section had the of the main grills and deep fryers which is why a range of food requiring these methods of cookery were cooked by this section.

传统上将这个部门是烧烤架和油炸机的主要使用者，大部分需要烤制和油炸的食品都是由这个部门来准备的。

In orde to obtain system optimization in high efficiency production and operation safety, the microcosmic problem of goaf treatment was brought into the creative design of mining method and the synergism of two problems was studied. Firstly, in view of the occurrence characteristics and mining conditions of catacalstic ore section of orebody No. 105 in Gaofeng mine in Guangxi province, considering the adaptability to different scale goafs in the ore section, based on mining environment reconstructing idea and continuous mining mode, a new mining method (mining environment reconstructing non-pillar sublevel-strip continuous mining method) was put forward. Then, some repr, esentative goafs were selected and their stabilities were calculated by discrete element method on the basis of differences of goaf scale, surrounding conditions and situ stress field. At last, the mining layout was adjusted on the basis of goafs stability analysis and the goafs were adjusted as a part of cutting engineering, blasting space or stope, so as to determine all kinds of goafs treatment schemes.

摘 要：为在生产高效和作业安全上取得系统整体最优，将碎裂矿段的空区处理微观问题纳入采矿方法创新设计宏观问题中，开展2种问题的协同研究：首先，针对广西高峰矿105号矿体碎裂矿段的赋存特点和开采技术条件，考虑对各种规模空区适应性，基于采矿环境再造和连续采矿理论，提出采矿环境再造无底柱分段分条连续采矿法；然后，根据采空区规模、围岩状况和原岩应力场等条件的差异，在所有采空区中选择具有代表性的空区，运用离散元程序对其稳定性进行计算分析；最后，在稳定性分析的基础上，灵活调整开采布局，将采空区调整为部分切割工程、自由爆破空间或采场，从而确定出各种规模空区的处理方案。

Exist different supply circuit, for the sound section and the relay section, completely separated with different ground line.

存在不同的电源电路部分，对声音部分和继电器，完全分开不同的接地线。

Based on the integrated sequence stratigraphy analysis of typical wells section and many well-to-well section, the control of hinge fault is confirmed. System tracts of downfauited block perfectly develop, from lower position to higher position, upfaulted block (west-north region of the gentle. slop) is in turn PGC、TST、 HST, overlapping in SB.

5通过典型井剖面及众多连井剖面的层序地层分析，证实枢纽断层的控制作用，断层下降盘各体系域发育完整，而其上升盘由低处向高处，依次是PGC、TST、HST超复于SB之上。

According to the charecteristice of soil-seed bank and overground vegetation in the natural recovering section and water-using section, the structure charecteristic of surrive natural secondary-forest and the problems existing in existence artificial forest, the strategy of building plant community for the vegetation recovering in hot-dry valley was pot forward.

根据系统中自然恢复斑块、水分利用斑块经水平阶整地的阶间坡面土壤种子库和地上植被特征、残存天然次生林的结构特点和现有人工林存在的问题提出干热河谷植被恢复中植物群落的构建策略。

3 Note: The requirements related to lamp/socket compatibility included in the "Durability" section of Table 1 in Version 3.2 have now been relocated into the new section above titled "Lamp/Socket Compatibility".

因为这些内容不利于那些注意超过灯具输入功率的灯管，或者灯具未指定使用的灯管类型的发展。EPA 认为 UL 安规已经足够引导其正确发展了。

The intermediate frequency elbow piece formation technology basic technological process is: First welds a lateral section is the polygon many leng link shell or both sides seal many leng fan-shaped shells, after the interior flushes the full pressure medium, the serve intrinsic pressure, under the intrinsic pressure function the lateral section by the polygon gradually changes a full circle, ends in a circular link shell.

中频弯管成型技术基本工艺过程是：首先焊接一个横截面为多边形的多棱环壳或两端封闭的多棱扇形壳，内部冲满压力介质后，施以内压，在内压作用下横截面由多边形逐渐变成圆，最终成为一个圆形环壳。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样