桥的

Objective:To study the effect of the compound membrane containing bFGF on the autoplastic nerve graft.

在修复长段神经缺损的研究中，多种桥接物(神经桥、肌桥、静脉、基膜、硅胶管等)对再生神经的定向诱导作用已无异议。

Research the distributive law of shear-lag of curved box girder jointless bridges by variation of load distribution,and compare with those in joints bridges.provide the basis about the account of account of shear-lag of jointless bridges.

分析无伸缩缝曲线箱梁桥剪力滞系数沿桥跨的变化情况并与有伸缩缝曲线桥进行比较，为无伸缩缝曲线箱梁桥剪力滞系数的计算方法提供理论依据。

A 10t-16. 5m general-purpose bridge crane which is produced by Dalian Crane Works is taken as an example. It conforms with"The Technical Regulations for General-Purpose Bridge Cranes"and all its deriations are chosen to be most unfavourable for cranes' travelling. All the effects which are due to the position of the trollay on the crane, the original skew angle of the crane and the defferent leading width are studied.

本文以大连起重机器厂生产的10吨-16.5米跨度的通用桥式吊钩起重机为例，在满足桥式起重机技术条件前提下，起重机的各种偏差取对运行最不利组合，分析计算了小车位置、桥架的初始偏斜和车轮踏面宽度等因素对分别驱动和集中驱动的桥式起重机的运行状态及侧向力的影响。

Since inextensible reinforcements do not stretch under design loading, they are the preferred MSE reinforcement type for highway structures in general and for critical structures such as bridge abutments in particular, where deformation control is crucial to structural performance of both the superstructure and the abutment.5 Inextensible reinforcements have been used successfully in MSE bridge abutment structures for thirty-five years, while research is still underway trying to develop an extensible

由于不可拉伸的加筋体在设计承载下不能拉伸变形，因此它们一般是公路结构，尤其是桥肩等重要结构中的首选材料，因为在这些结构中，变形控制对上层建筑和桥肩中性能表现是很关键的因素。不可拉伸加筋体在加筋土桥肩结构中已经成功的使用了35年，与此同时，研究能够在桥肩应用中性能有保证的可拉伸加筋体的工作正在进行中。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

Southwest and south-west of tricyclic tetracyclic focus on a large number of affordable housing and economic-based real estate, southwest of Wilmar Sanhuan Yuquanying Bridge to Bridge, southwest of岳各庄Sihuan the dahongmen Fengtai Bridge to Bridge, the two article, as well as along the roads between the economy this year focus on the supply of properties for sale area, and most appear to the market.

西南和西南三环四环重点放在了大量的可负担得起的住房和经济为基础的房地产，丰益西南三环玉泉营桥桥，西南四环的岳各庄桥到丰台大红门桥，这两个文件，以及沿道路之间的经济今年重点放在供应的物业销售面积，而且大多数出现在市场。

Southwest and south-west of tricyclic tetracyclic focus on a large number of affordable housing and economic-based real estate, southwest of Wilmar Sanhuan Yuquanying Bridge to Bridge, southwest of岳各庄Sihuan Fengtai Bridge to the dahongmen Bridge, along the two roads as well as between the economy this year focus on the supply of properties for sale area, and most appear to the market.

西南和西南三环四环重点放在了大量的可负担得起的住房和经济为基础的房地产，丰益西南三环玉泉营桥桥，西南四环丰台岳各庄桥到大红门桥，沿在两条道路之间以及今年的经济重点放在供应的物业销售面积，而且大多数出现在市场。

Bridge crane installed in the bridge along the track on both sides of the elevated vertical run,Lifting trolley along the bridge on the laying of the track in the horizontal run, which constitute the scope of work of a rectangle, you can take full advantage of the space bridge was being lifted the following materials, the hindered from ground equipment.

桥式起重机的桥架沿铺设在两侧高架上的轨道纵向运行，起重小车沿铺设在桥架上的轨道横向运行，构成一矩形的工作范围，就可以充分利用桥架下面的空间吊运物料，不受地面设备的阻碍。

Irradiated by microwave with different energies to the microbridge junction, up to 77k, a series of Josephson response steps have been observed.(8) By using trilayer resist exposure technique and a critical metal lift-off step, the mushroom gates with 0.15μm gate-length for 8-millimeter high electron mobility transistors have been successfully fabricated.

用直流磁控溅射的方法在ZrO〓基底上制备了YBaCuO超导薄膜，采用电子束／紫外混合曝光技术，首次制备得到桥宽小至0.15μm的微桥结，在液氮温度（77K）测得该微桥结的临界电流密度只有150μA，并在不同能量的微波辐照下，观察到该微桥结的交流I-V特性具有Josephson台阶效应。

Firstly, this paper discusses the development actuality of the research on double-front axle steering system and power-train of automobile. Based on the structure of the design experiences from others, the kinematics formula of double-front axle steering system is fetched, and the mathematical model of optimization design of double rocking arms mechanism and steering trapezium mechanism is established by space geometry method. Considering the difference between the real steering angle from wheels and the ideal steering angle from the ideal formula as the objective function, the optimization design method of double-front axle steering system is presented.

本文首先论述了国内外对汽车双前桥转向系统和动力传动系统研究的发展状况，在总结前人研究设计经验的基础上推导出汽车双前桥转向系统运动学关系，运用空间几何法建立了双前桥双摇臂机构及转向梯形机构优化的数学模型，以转向轮实际转角值与理想公式求出的理想转角值之间的误差达到最小为目标函数，提出了双前桥转向系统参数的优化设计方法。

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