等轴

Taking the surrounding rock of deep-buried caverns at the Jinping Second Class Waterpower Station as an example,uniaxial compression tests are performed to study the influence of temperature on the Poisson ratio and elastic modulus under different temperatures.

选取锦屏二级水电站引水隧洞围岩大理岩作为试样，进行不同温度条件下的单轴压缩试验，分析温度作用对大理岩弹性模量、泊松比等力学参数的影响。

Based on the characteristics of staged-construction of foundation pit and the interaction of diaphragm walls-bracing-soil, a FEM method is provided in this paper to analyze the moment and deformation of the diaphragm walls in whole process of foundation construction, taking consideration of all the possible construction stages from the beginning of excavation to the end of foundation, and the influence of cap beam, pre-load of steel bracing, removal and change of bracing, and the corresponding computer program is composed.

本文首先基于杆系有限元计算原理、基坑工程分工况施工以及围护体、支撑、土体协同工作的特点，提出了一种基坑支护结构全过程内力及变形分析方法，编制了相应的计算程序。该法可考虑第一阶段挖土至±0.000结构楼层施工结束期间的所有工况，可考虑压顶梁对围护体变形的制约作用，以及钢支撑预加轴力、拆撑、换撑等因素的影响。

The production process includes hammer die forging,pressure forging, roll forging forming,and precision rolling-die forging composite technology.

前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。

STL series of single-stage single-suction vertical pipeline centrifugal pump for direct-coupled pipeline structure, the impeller mounted on motor shaft extended, with smooth operation of simple structure, easy maintenance overhaul, easy installation, and covers an area of provincial (and ordinary horizontal Pump covers an area savings of more than 30% above) and other characteristics

STL系列单级单吸立式管道离心泵为直联式管道泵结构，叶轮安装于电机加长轴上，具有运行平稳结构简单、维护检修简便、安装方便及占地面积省（与普通卧式泵比占地面积节省30%以上）等特点

Through the retrofit for multi-frequency regulation, shaft seal ing water system,rotator material and shaft cover orientation mode of 150 NW-78×2 low pressureheater drain pump,pump corrosion at low-load operation,bad packing seal,bearing vibration,bearing burned have been solved.

通过对150 NW 78×2型低压加热器疏水泵进行变频调节改造，对轴端密封水系统、转子部件材质和轴套锁母定位形式进行了改进，消除了给水溶氧超标、轴承振动超标和轴承烧毁等缺陷，提高了泵组健康运行水平。

Chang Jia direct selling all kinds of perennial driving drum, bend drum, electric drum, drum magnetic separator, the trough roller, roller transition, the buffer roller, friction-aligning roller, parallel roller, cleaning, roller, reducer, Motors, housings, couplings, coupling, brakes, Nizhi, conveyors, roller stamping parts and mining machinery, and other components.

常年厂价直销各种传动滚筒、改向滚筒、电动滚筒、磁选滚筒、槽形托辊、过渡托辊、缓冲托辊、摩擦调心托辊、平行托辊、清扫器、辊子、减速机、电机、轴承座、联轴器、偶合器、制动器、逆止器、输送带、托辊冲压件及矿山机械等部件。

Direct driving by hollow shaft expels chains and saves time for lubrication and tension adjustment on chains.

直接由空心驱动轴驱动，省去了链条润滑等维护工作。

In order to reduce the effect of probe errors in near-field antenna measurement, the solutions are proposed as follows: On the one hand, theoretical formula of probe-compensated is derived; on the other hand, drop-shaped probe is designed and near-zone gain, far-field patterns, axial ratio, main lobe width, input impedance, voltage standing-wave ratio, electromagnetic field and current distribution of probe are obtained through the computer simulation.

针对近场测量中的重要误差源之一&探头&的影响，本文提出解决方法：一方面用探头补偿的方法，根据洛仑兹互易定理和微波网络理论对补偿的解析式进行详细推导；另一方面用两种不同的仿真软件求解终端开口矩形波导探头的近场增益、远场方向图、轴比、主瓣宽度、输入阻抗、电压驻波比、电场分布、磁场分布、表面电流分布等特性参数，可实现探头增益的修正。

The rotor part is composed of shaft, middle wheel and balancing drum etc.

转子部分由轴、中轮、平衡鼓等组成。

On the basis of foreign research achievements, two kinds of domestic cold-formed steel sections are used as the parent materials to design Rosette-joints. Different styles of joint and various influencing factors (including form of hole, aperture, and the edge distance from the center of joint to the edge of the sheet) are taken into account, and four series of test specimens are schemed out. A series of axial-tension tests on all test specimens are carried out to investigate the shear strength of every rosette-joints.

本文结合国外的研究成果，采用我国常用的两种较大尺寸的冷成型钢型材作为母材来设计插座式连接，考虑了节点的不同形式以及影响节点承载力的各种因素(包括孔形、孔径、端距等)，设计出四组不同形式的节点试件，并对各组试件进行轴向拉伸试验来考察各种类型插座式节点的抗剪承载性能。

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