中杆

On the basis of drawing on the technology and experiences of tower assembling and erection for 500kV and 750kV transmission lines in China, such methods suitable to the tower assembling for UHV transmission line as inside suspension pole with outside pulling wires, ground rocker pole and tower crane are adopted and applied in UHVAC test and pilot project, pursuantly the task of tower assembling and erection in this project is completed, from this a lot of practical experiences are achieved and can be available for reference to subsequent engineering and construction..

文章在借鉴我国500 kV和750 kV架空输电线路组塔施工技术和经验的基础上，提出了内悬浮外拉线抱杆组塔、落地摇臂抱杆组塔、塔式起重机组塔等适合于特高压线路铁塔组立的方法。该方法已在特高压交流试验示范工程中得到应用，为后续工程建设提供了技术储备。

Kinematics model of the suspension be reduced to truss structure, but as each bar is absolutely rigid, hinge point is also considered to be only a pure rotation without any deformation of rubber parts, such results have a certain margin of error.

运动学模型中把悬架简化成杆系结构，而各个杆件看成是绝对刚性的，铰点处也认为是只有纯转动而无任何橡胶件的变形，这样所得的结果就有一定的误差。

Contact lines between worm and worm gear and relative curvature are the mainfactors that influence the properties of worm gear drive.

在《渐开线内啮合弧面蜗杆》的第一报中，已经详尽地阐明了提出这种蜗杆的理论依据。

During light adaptation, the diameter of rhabdoms was small, the arrangement of microvillus in the distal rhabdom was in disorder, and the area of the multivescicular bodies in the cytoplasm of the retinular cells was large, but the perirhabdomal vacuoles was very small, the amount of the lamellar bodies and mitochondrias were small, the pigment granules were distributed in all retinular cell.

结果显示：光适应时感杆束的直径较小，组成近远端感杆束的微纤毛排列零乱；小网膜细胞中的多囊体体积增大，膜下储泡囊体积减小，板膜体、线粒体等细胞器数量较少，色素颗粒分布于整个小网膜细胞。

Simulation result of the experiment shows that unloading and recovery process of PTCS is not consistent with the local stress redistribution and concentration.It can be divided into four phases:1.local stress unloads first in the middle of PTCS;2. stress continues to unload near the incident bar.3.Stress continues to unload near the transmission bar,the first and second layer PT buckling rumple disappear;4.the whole PTCS vibrates elastically.

对具体冲击实验的数值模拟结果表明：相变柱壳的卸载恢复过程在柱壳结构中是不均匀的，伴随着壳体局部应力释放和局部应力集中，可以分为以下四个阶段：1、柱壳中部发生弯曲变形的壳体应力首先释放，2、靠近入射杆端的壳体应力继续释放，3、靠近透射杆端的壳体应力释放，第一层与第二层相变屈曲皱褶消失，4、柱壳整体弹性振动。

SUGGESTED MODIFICATIONS Among the suggestions put forward by various commanders for modifying the 81-mm so as to make it more useful to the infantry regiment there were the following: Lighten it in "any manner possible" to increase its cross-country mobility. Build it so that it could be broken down from a long barrel to a short barrel, thus making a lighter pack possible while preserving its heavy punch at the short ranges. Sectionalize the base plate so that the load can be distributed. Alter metallurgically or in design the elevating screw, the breaking and rapid wearing of which is now the chief structural weakness in the weapon.

建议采取的改进措施：为改进81mm迫击炮，使其在步兵团中发挥更大的战术校能，多位指挥官提出了如下意见：尽一切办法减轻重量，以增强其越野机动性；改进结构，使长炮管可拆解更换为短炮管，这样就可以在保留强大的近程冲击力的同时减轻负重；分段铸造底盘，使负重均匀分布；改进升降螺丝杆的冶炼或设计，升降螺丝杆的损坏和迅速磨损现在是这种武器主要的结构缺陷。

It is embodied concretely:(1) With the adoption of grouting bolts, the cranny in wall rocks can be blocked up, the air can be isolated, the wall rocks can be prevented to be weatherized and make water, the strength of wall rocks can also be avoided to be lowered;(2) The lax broken wall rocks are commentated to a whole by liquid after they were grouted and the rock"s strength is increased, so the wall rocks become a part of the support structure by using itself and become a whole with the original rock, and the roadway is made to keep stable but not easy to be broken;(3) The spray layer wall are filled with liquid after grouting, the stress is avoided to be concentrated because the load could be evenly acted on the spray layer and the support;(4) The pressure acted on the plank can be delivered to the two sidepieces and then to the bottom by reinforcing the sidepiece; At the same time, the concentration degree of loads acted on the motherboard can be weaken because of the enlargement of the combination arch"s thickness, as result, the rock"s stress is lowered and the heaving is alleviated;(5) The common bolt is made to be fixed the whole length after grouting, the layers are connected to a integral whole and bear the weight of loads, so the support structure"s unity is increased.

具体体现在：(1)采用注浆锚杆注浆，可以利用浆液封堵围岩裂隙，隔绝空气，防止围岩风化，且能防止淋水和渗水，避免围岩被水浸湿而降低围岩的本身强度及造成的巷道变形。(2)注浆后浆液将松散破碎的围岩胶结成整体，提高了岩体强度，实现利用围岩本身作为支护结构的一部分，且与原岩形成一个整体，使巷道保持稳定而不易产生破坏；(3)注浆后使得喷层壁后充填密实，保证荷载能均匀地作用在喷层和支护上，避免出现应力集中点而首先破坏；(4)注浆后使作用在顶板上的压力能有效地传递到两帮，通过对帮的加固，又能把荷载传递到底板；同时由于组合拱厚度的加大，这样又能减小作用在底板上的荷载集中度，从而减小底板岩石中的应力，减轻底臌；(5)注浆加固后能使普通端锚锚杆实现全长锚固，它们共同将多层组合拱连成一体，共同承载，提高了支护结构的整体性。

A circular structure at the base of a ski pole, used to prevent the pole from sinking too deeply into the snow.

滑雪杆支架在滑雪杆底部的圆形支架，用来防止它陷进雪中太深

Sports A circular structure at the base of a ski pole, used to prevent the pole from sinking too deeply into the snow.

滑雪杆支架：在滑雪杆底部的圆形支架，用来防止它陷进雪中太深

The effect of bimoment and ratio of slenderness is considered in thegeometrical stiffness matrix.

根据线弹性统一分析力学模型，提出了相应的几何非线性分析力学模型，导出了考虑杆件双力矩贡献的几何刚度矩阵，并在几何刚度矩阵中引入了杆件长细比的影响项。

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