用木材的

With the enterprise productive practice of the plywood for container soleplate manufacturing and the serving for the production technology, this thesis has explained systematically my design philosophy in the course of designing, basic computing technology of raw materials, the exertion of the wood processing equipment, finance calculating of the enterprises design and the application of new technology in process of productive practice, etc.

论文与集装箱胶合底板生产企业的生产实际相结合，围绕着为生产工艺服务，系统地阐述了本人在设计过程中的设计思想，原材料的基本计算方法，木材加工设备的选用，设计企业的财务计算以及实用新技术在生产过程中的应用等，并结合本人在设计实习过程中所看、所闻、所学，提出了一些在现实生产中存在的问题及改进、发展集装箱底板用胶合板产品的建议。

In this paper,the condition that gas flow through wood in the pattern of linear flux wasdetermined from the theories of thermodynamics and fluid mechanics.The expression of flow-resistor of tracheids is reduced with the continuity equation and the equation of motion indifferential form.The flow-resistor network is constructed by means of the theory ofpercolation.The equivalent flow-resistor was evaluated by utilizing the real spacerenormalization approach.

本文根据针叶材管胞的解剖结构，运用孔隙介质流体力学的理论，导出了管胞关于气体渗透流阻的数学表达式；继而根据管胞纹孔在三个纹理方向上的连接特性，利用管胞流阻建立了一个描述针叶材三个纹理方向气体渗透性的三维流阻网络；然后运用实空间重整化变换的方法，求解试件流阻网络三个纹理方向的等效流阻，并由此计算试件相应的气体渗透系数；最后用我国南方常见的人工林马尾松木材试件进行渗透系数实际测量，与理论计算结果进行对比分析，以验证三维流阻网络及其理论的准确性。

Data indicate that wetting property of self-bonding fiberboard is better than MDF, that wetting property of sanded surface of self-bonding fiberboard made with Method I is inferior to that of unsanded fiberboard, but opposite results to the comparison between sanded surface of self-bonding fiberboard made with Method II and unsanded surface, and that self-bonding fiberboard without waterproof agent has better wetting property than that with waterproof agent.

结果表明：(1)无胶木材纤维纤维板的润湿性比中密度纤维板好；(2)利用无胶纤维板工艺1制作的无胶板砂磨表面的润湿性比未砂磨表面润湿性差，但用无胶纤维板工艺2制作的无胶纤维板的砂磨表面润湿性比朱砂表面润湿性好；(3)未加防水剂的无胶纤维板的表面润湿性比加防水剂的无胶纤维板的润湿性好。

Refers to flinty material which with each plastic material (for example gypsum, resin, clay and so on) or may carve, may engrave (for example lumber, stone, metal, jade block, agate, aluminum, glass fiber reinforced plastic, sandstone, copper and so on), creates has the artistic image which certain space visible, may touch, in order to the reflection social life, expresses artist's esthetic feeling, the esthetic emotion, the esthetic ideal art.

指用各种可塑材料或可雕、可刻的硬质材料（如木材、石头、金属、玉块、玛瑙、铝、玻璃钢、砂岩、铜等），创造出具有一定空间的可视、可触的艺术形象，借以反映社会生活、表达艺术家的审美感受、审美情感、审美理想的艺术。

Refers to a variety of plastic materials (such as plaster, resin, clay, etc.) or can be carved, Keke rigid material (such as wood, stone, metal, jade pieces, agate, aluminum, glass, steel, sandstone, copper, etc.) to create a have a certain space, visual, tactile art image, to reflect the social life, expressing the artist's aesthetic experience, aesthetic emotion, aesthetic ideal art.

指用各种可塑材料或可雕、可刻的硬质材料（如木材、石头、金属、玉块、玛瑙、铝、玻璃钢、砂岩、铜等），创造出具有一定空间的可视、可触的艺术形象，借以反映社会生活、表达艺术家的审美感受、审美情感、审美理想的艺术。

This seminar introduces methods for the structural analysis of historical monuments, including masonry, timber, iron, steel, and concrete structures. Short lectures will be followed by discussion sessions, together with weekly readings and a series of smaller assignments. Each student will write a final paper on a topic of their choosing. Final papers may be predominantly historical, with structural analysis to support the main arguments, or predominantly structural, with historical analysis to provide context.

概论该课程介绍了对历史丰碑上有名建筑的结构分析方法，涵盖了石材、木材、钢材、铁和混凝土结构等，课堂内以讨论的形式进行（结合每周的阅读和一系列小作业），每个学生自选主题写一篇论文作为期末论文，论文需用结构分析的方式去论证主要观点以体现显著的历史性，或者以历史分析的方式结合历史环境去表达其显著的结构特点。

This seminar introduces methods for the structural analysis of historical monuments, including masonry, timber, iron, steel, and concrete structures. Short lectures will be followed by discussion sessions, together with weekly readings and a series of smaller assignments. Each student will write a final paper on a topic of their choosing. Final papers may be predominantly historical, with structural analysis to support the main arguments, or predominantly structural, with historical analysis to provide context.

概论该课程介绍了对历史丰碑上有名建筑的结构分析方法，涵盖了石材、木材、铁、钢材和混凝土结构等，课堂内以讨论的形式进行（结合每周的阅读和一系列小作业），每个学生自选主题写一篇论文作为期末论文，论文需用结构分析的方式去论证主要观点以体现显著的历史性，或者以历史分析的方式结合历史环境去表达其显著的结构特点。

Dead branches or knots in different sizes of tree was studied and different branch development phases of growth,suppression,death and self-pruning was analyzed to evaluate the effect that knot size and distribution impact on timber quality.Branch and knot dynamic models were developed using stand and tree variables.Based on multipleunit stepwise regression method, the individual tree growth model was established using forest and crown factors as the variable. The best taper equation model of Larix olgensis was bucking data of 130 sample trees selected in the studied area.

本研究以不同年龄、不同密度及不同立地条件的落叶松人工林作为研究对象，基于19块标准地中95株标准木的树干解析、枝解析及节子剖析数据，揭示了不同林分条件下林木的枝条数量及在树冠内的空间分布格局、生长发育规律；研究了不同大小树木的死枝和节子大小及其变化规律，分析了枝条的生长、被压、寿命和自然整枝过程，评价了节子大小和分布对木材质量的影响；以林分变量、林木变量和着枝深度等为自变量建立枝条生长和节子大小的动态预测模型；选择林分因子和林木的树冠因子作为竞争因子，用多元逐步回归的方法建立落叶松人工林与距离无关的单木生长模型，并根据研究地区选取的130株造材样木数据，建立了落叶松人工林最佳削度方程。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐