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In the paper four aspects have been studied:(1) tree and distributing, belonging to the correlative contents of the dendrology,(2) the macroscopical character in virtue of magnifier and entitative microscope observing the three sections (cross section, radial section and tangential section );(3) the microcosmic character, in virtue of light microscope observing slices.

本文从以下四个方面进行了研究：(1)树木及分布，树木学方面相关的内容；(2)木材宏观特征，借助扩大镜和实体显微镜，在木材的三个标准切面，即横切面、径切面和弦切面上进行观察；(3)木材微观特征，借助光学显微镜观察切片。

In this paper, thereare four sections. In the first section, we introduce the basic theory. Inthe second section, we give out the recent main results of multivariateLagrange interpolation. In the third section, we get some theories ofno posed set of nodes from a kind of recursive method of constructingposed set of nodes for bivariate Lagrange interpolation, and we get akind of abnormal posed set of nodes for interpolation form the reversethought of that theory.

本文共分为四章，第一章介绍了有关多元插值的基本理论和方法，第二章讲述了有关多元Lagrange插值和多元切触插值的近期主要结果，第三章我们从有关适定结点组的添加曲线法考虑，得到了一些有关Lagrange插值不适定的结论，并从该结论的反方向思考，得到了一种非常规型插值适定结点组。

The paper analgses nitrobenzene and benzene in polluted water of TongJiang section,TongJiang Dong Gang section and Bacha section of songHuaJiang and HeiLongJiang river.

本文通过对双苯污染带流经松花江和黑龙江的同江断面、同江东港断面及八岔断面监测分析，对同江段水质受硝基苯污染的状况作出了科学的分析评价。

This paper discusses the characteristics of the portal frame building constructer and studies optimization method to design them.The systematic analysis of the portal frames steel structural characteristics is done in section 2. And in section 3 and section 4, the structural optimization design is introduced based on the principles of finite element analysis and the technology of Object Oriented Programming in the software ANSYS.

本文系统地分析研究了门式刚架钢结构的特点，在此阶段，以有限元为基础，借助大型有限元ANSYS面向对象程序设计技术进行优化设计，研究基于功能强大的ANSYS作结构优化设计的问题：提出有效的设计变量、优化目标函数(以降低结构重量、充分发挥材料性能为目标)，编写APDL优化程序控制文件，在ANSYS程序上实现门式刚架结构优化设计。

Influencing factors of dissociative cross section, change of cross section with electron energy as well as the dependence of the cross section by vibrational level of ground state are presented in the paper.

得到了解离反应截面的影响因素、反应截面随电子能量的变化情况以及分子的振动能级对反应截面的影响。

The paper machine comprises a headbox (100), a gap former (200), a press section (300) which comprises at least one extended nip press, a pre-dryer section (400) in which a web is dried applying at least cylinder drying (R1-R7), a pre-calender (500) in which the web is pre-calendered, at least one portion which is formed of a coating station (600) and an after-dryer section (700) and in which the web is coated on both sides applying a film coating method or a non-contact coating method and dried applying at least contact-free drying (710), an end calender (800) in which the web is calendered, and a reel-up (900) in which the web is reeled.

所述纸机包括流浆箱(100)；夹网成形器(200)；包括至少一个延展压区的压榨部(300)；至少采用烘缸(R1-R7)对纸幅进行干燥的预干燥部(400)；对纸幅进行预压光的预压光机(500)；由涂布站(600)和后干燥部(700)形成的至少一部分――其中，纸幅的两面都用薄膜涂布法或非接触涂布法对进行涂布，且至少采用无接触干燥(710)对纸幅进行干燥；对纸幅进行压光的端部压光机(800)；以及卷取纸幅的卷取部(900)。

Through detailed theory analysis and formulas, the paper raveled out the limitation of big section and small section, and got conclusion that current transformer with big section and high quality PCB rogowski coils has the same measure principle as the one with ideal rogowski coils, which provides the theoretical basis for optimization design of current transformer with PCB rogowski coils and its application in the power system of mining area.

文章通过详细的理论分析和推导，解除了对截面大小的这一限制，得出大截面、高精度的PCB空心线圈电流互感器具有和理想空心线圈电流互感器相同测量原理的结论，为PCB空心线圈电流互感器的优化设计和在矿区电力系统中的应用提供了理论基础。

Based on engineering practice,the paper introduces in detail the construction technique of abutment on pier top and temporary buttress,the construction technique at 0 section,the construction technology of casting concrete for cantilever and cast-in-situ concrete section for side span and the construction technology at closure section ,sums up the key construction technique of conti.

结合该工程实际，对墩顶支座及临时支墩施工技术、0号段施工技术、悬臂浇筑及边跨现浇段施工工艺、合龙段施工工艺等进行了详细的介绍，总结了大桥连续刚构关键施工技术，实践证明这些施工工艺和控制技术是可行的，为以后类似工程提供了借鉴。

The paper chooses the assembly of aircraft digital assembly location as a research object, chooses the assembly of aircraft section as a research example, aims to study the method of aircraft digital assembly location, focuses on the research of the structure of digital assemble control prototype system for aircraft section based on laser measurement, develops the servo control device and related software based on LM629, ATmega128 and LMD18200, completes the construction of the system based on the assembly of aircraft section.

以飞机的数字化装配定位为研究对象，以飞机舱段的装配为例，以探索飞机数字化装配的方法为目的，通过对基于激光测量的飞机舱段数字化装配定位控制原型系统结构的研究，采用运动控制芯片LM629、单片机ATmega128和功率放大芯片LMD18200构成了伺服系统控制随动装置，并开发了相关软件系统，完成了基于舱段大部件装配的数字化装配定位控制原型系统的设计开发。

The problem of Drawing Cross Section in road CAD is discussed in this paper. Using ObjectARX programming technology implements Cross Section's Automatic Drawing and Interactive typesetting. This method improves efficiency of Drawing Cross Section.

针对当前路线CAD系统中绘制横断面图存在的问题，在AutoCAD环境中利用先进的ObjectARX技术实现了横断面图的自动绘制和交互排版，极大地提高了横断面图的绘制效率。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。