中杆

In the calculation of inclination anchor rod, the bond strength between soil formation and anchor rod given in the specifications is the once normal pressure data.

在土层倾斜锚杆计算时，规范中给出的土层与锚杆间的粘结强度采用的是一次常压灌浆测定的数据，当采用二次劈裂注浆施工工艺时，理论计算与实测数据会存在较大的差异。

If the nipple is not highlighted in the areola, the bending of the small-Ling-Ling will be able to eliminate the ball

如果乳头没有在乳晕中突显出来，细小的弯曲的杆铃将能消除杆铃球

Stainless steel welded pipe of anti-collision rail of main road bridge guardrail road lame pole platform flagpole decorate structure sidewalk guardrail fitness equipment is widely used in public works such as steel structure works road and bridge guardrails lamp poles road signs billboards industrial pipe vehicles and ship luggage rack and rails vehicle pipe and spare parts structure decorative grid steel furniture medical equipment fitness equipment and other fields.

主干道防撞栏杆大桥护栏杆道路灯杆站台旗杆装饰结构人行护栏健身器材不锈钢焊接管，广泛应用于市政工程中的钢结构工程、道桥护栏、灯杆、路标、广告牌架，工业结构用管、车船行李架及扶手，车辆用管及零配件、结构装饰性网架、钢制家居、医疗器械、健身器材等领域。

This bridge design for 2×80m the continual steel truss girder bridge, the span is 160m, the main spar center distance is 5.75m, clothes rack high 11m, panel length 8m, the main spar geometry graphical representation uses the triangle web member system, the floor system by the carline, the crosnbeam is composed, the member connection uses the high-strength bolt connection, the design load for the dead load and - the live load.

该桥设计为2×80m连续钢桁梁桥，全长为160m，主桁中心距为5.75m，桁高11m，节间长8m，主桁的几何图示采用三角形腹杆体系，桥面系由纵梁，横梁组成，杆件连接采用高强螺栓连接，设计荷载为恒载和中—活载。

This paper discusses the work principle of elastic vibrating- rod sieve, and through the transformation of the existing circular sieve-shakers, illustrates the functions of elastic vibrating-rod sieve in the process of the fine screening of moist coal , and points out some existing problems and developing directions in the future.

论述了弹性振杆筛的工作原理，通过对现有圆振筛的改造，阐明了弹性振杆筛在解决湿煤细筛分过程中的作用，并指出了存在的问题及今后的努力方向。

In this paper, a "rigid bar relative movement model" was established to illustrate the traces of the helices in wire ropes. The angular speed of a moving particle of the model was relatives to curvature tensor to derive the curvature components and torsion of helices in multi-layer wire ropes. According to long and thin rod theory of Love and Yen-Chen's theoretical model considered the contact force and frictional force, the force-deformation or force-strain relative of wire in curved wire ropes subjected axial force is derived from the curvature components and curvature increment.

本研究改以刚杆相对运动模型，直接描述钢索中钢绞线轨迹，并且透过角速度类比曲率张量之概念，推导圆弧型多层钢索内部之钢铰线之曲率分量与扭率；之后再依据Love的细长杆理论，辅以Yen-Chen在考虑接触力及摩擦力下所修正之理论模型，以曲率及曲率增量来探讨圆弧型钢索受静态荷重作用下，钢绞线之受力与变形或应变关系。

In operation, the screw cylindrical surface and the pump cylinder wall formed between the layer of oil film to prevent direct contact between the metal, so that screw tooth surface wear significantly reduced.

在运行中，螺杆外圆表面和泵缸内壁之间形成的一层油膜，可防止金属之间的直接接触，使螺杆齿面的磨损大大减少。

In order to meet people in the society's demands, we have designed the small-scale lifting machine, among them, the worm decelerator is a focal point designed the ring.

小型提升机是为了满足社会中人们的需求而设计的，其中，环面蜗杆减速器是设计的重点。它采用了准平行啮合线二次包络环面蜗杆技术。

Firstly, based on the wave equation, determining reasonably its initial boundary condition, the paper establishes a computer diagnostic model of oil pumping mechanical well, the damping factor in the model has been reasonably determined, the implicit difference solutionis conducted to the model by changing of step width expression difference solves, and the half analytical solution is explored to the model - fine integral method; and realizes the transformation from dot indicator diagram to indicator diagram of any section.

首先从抽油机井计算机诊断技术的理论基础入手，考虑多级抽油杆连续性，建立了粘滞阻尼波动方程，合理确定模型中的阻尼系数，采用无条件稳定的隐式差分法及半解析方法求解方程，获得抽油杆柱任意断面和抽油泵处的示功图。

This approach can be applied to determine the parameter distribution of structural damping characteristics.

理论分析证实基于弹性波动力学理论下粘滞阻尼理论及复阻尼理论在杆的轴向振动及梁的横向振动中的一致性，可应用这种方法来确定杆式结构及梁式结构的阻尼特性参数分布。

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