查询词典 main bearing

Main show is in: One, go up in breed, bearing of eye preexistence boundProductbreed norms adds up to about 150 thousand,......

主要表现在：一、在品种上，目前世界。。。。。。

The high accuracy that Japanese essence is versed in development went machine tool main shaft to use stops pushball bearing.

日本精工开发出了机床主轴用的高精度止推球轴承。

Took the different diameters double-row bearing slewing ring asexample, this dissertation studied the distribution of axial press ofthe rolling body under axial load and throw moment, the contact pressbetween two outer seat-rings which are connected to the main machinewith high strength screw bolts.

本文以双排异径球式回转支承为例，对球式回转支承在承受轴向载荷和倾翻力矩时的滚动体轴向正压力大小、分布及由高强度螺栓与主机连接的滚圈接触面的接触力进行了详细的理论推导和实际计算，说明在双排球式回转支承的结构静力分析过程中，可以将滚圈安装接触面的接触力简化为铅垂方向的均布载荷。

Calculation of loss and gain of components in parentage and altered rocks during metasomatism, reveals that, in rubification and afforestation belts, the components brought in were K〓, CO〓, H〓O, and the components brought out were SiO〓, Ca〓 and Na〓, implying that the early ore-bearing hydrothermal fluids were rich in CO〓 and H〓O. SiO〓 brought out from potassic and chlorite alteration zones could serve as the main source for SiO〓 necessary in the formation of quartz veins, of silicification and of bericitization at shallow depth.

说明早期成矿流体为富含CO〓、H〓O等的碱性流体，其中钾化、绿化带中带出的SiO〓等是浅部石英脉、硅化、绢英岩化中硅质的主要来源，带出的Ca〓与成矿流体中的CO〓结合形成碳酸盐化，带出的Na〓则在浅部形成钠长石脉。

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

At the heart of the main gear is the durable sprag bearing.

位于主齿轮是耐用sprag轴承。

The concept of magnetic suspending hard disk is put forward,the basic principle of active magnetic force bearing with 5 freedom based on coupling excitation is introduced,the calculation formula of magnetic force and design formula of main structure parameters are inferred.

提出磁悬浮硬盘的概念，介绍了基于耦合激磁的 5自由度主动磁力轴承的基本原理，并推导了磁力的计算公式及其主要结构参数设计公式。

Based on the observation data,the main load-bearing characteristics of hanging-sliding support s in a sublevel caving face are studied,and the adaptability of the supports is analyzed.

根据悬移支架放顶煤工作面支架阻力的实际观测数据，论述了放顶煤工作面悬移支架的主要受力特征，并对支架的适应性进行了分析。

Fruit indehiscent, samaroid silicles, transversely oblong or ovoid, 1-seeded, thin walled, with woody and coarsely reticulate venation, angustiseptate, sessile, transversely 2-winged, 2-16-spined; wings prominent, longer or shorter than main part of fruit, with 3-20 subparallel veins extending full length; spines often unequal in length, at least some subparallel to pedicel, those on the seed-bearing fruit half longer; replum and valves margin united into a longitudinal vein; septum complete; style absent, obsolete, or conical and to 5 mm; stigma capitate, entire, long papillate.

果不裂，突出的翅，长或短于主要果，具3-20近平行脉深裂延长全长；刺通常不等长，在花梗，那些在种子取得成果半长上近平行的一些的至少；假隔膜和阀门边结合成为一纵向脉；隔膜完全；花柱无，废退，或者圆锥状和对5毫米；柱头头状，全缘，长具乳突。

Reflect the following issues : housing the main foundation sink, bearing surfaces, paint layer grievances, local tenesmus, seepage, and other quality problems; Housing size has shrunk, particularly balcony, the corridor area calculations manifest inequality; Purchase contract irregularities, some developers without consumer consent, without Planning Board approval to change the planning, design; property management responsibilities unclear, developers building units onto the construction units onto property company owners to repair houses; exaggerated propaganda to cheat and mislead consumers.

反映的主要问题有：房屋主体地基下沉、承重墙开裂、粉刷层不平、局部下坠、渗水等质量问题；房屋面积缩水，特别是阳台、走廊面积的计算显失公平；购房合同不规范，一些开发商未经消费者同意，擅自向规划委员会报批变更规划、设计；物业管理责任不明确，开发商推给建筑单位，建筑单位推给物业公司，业主维修房屋难；夸大宣传，欺骗和误导消费者。

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