查询词典 bridge bird

In general, large-span cable-stayed and suspension bridges require bridge towers with a length of more than tens or hundreds of meters. Due to the unproportionate slenderness ratio, the bridge tower becomes vulnerable to air and thus easy to be distorted or to vibrate, which will affect the stability of the entire bridge structure. Therefore, it is of great significance to carry out an in-depth research on the force feature of the bridge tower in a flow field.

大跨度的斜拉与悬索桥，往往都需要建造数十米甚至上百米的桥塔，过大的长细比，使得桥塔在流场中受到气体的作用容易发生变形或振动，从而影响了整个桥梁结构的稳定性，因此，深入细致地研究桥塔在流场中的受力特性非常有必要。

Construction Control of Extradosed Cable-stayed Bridge;2. The main bridge of the Kaifeng Yellow River 2nd bridge of Daguang freeway is 7-tower and 8-span prestressed concrete extradosed cable-stayed bridge .

以大广线开封黄河二桥主桥——7塔8跨预应力混凝土矮塔斜拉桥为研究对象，借助MIDAS/Civil有限元程序建立了该桥梁空间有限元计算模型，采用子空间迭代法计算了桥梁的动力特性。

Hangzhou Bay Bridge is the dream of many years Ningpo, Hangzhou Bay is the world's three-tidal bay, the biggest feature is a flood, streaming urgency, while the southern coast has a very wide beach, the beach there are more than nine kilometers, in the Land under some natural gas, the construction of a bridge in this place, in the past were very rare, and uniqueness lies in the special geographical environment, the difficulty of his decision, he is quite a high cost, so that the Hangzhou Bay Bridge The greatest feature is that under these conditions to build a bridge, how to overcome difficulties.

杭州湾跨海大桥是宁波人多年的梦想，杭州湾是世界三大强潮海湾，最大的特点就是一个潮大，流急，另外有一个南岸非常宽的滩涂，这个滩涂有九公里多，在滩涂底下还有一些天然气，在这个地方建桥，在以往是很少的，特殊性就是在于特殊的地理环境，决定了他的难度，他的成本也是相当的高，所以说杭州湾跨海大桥最大的特点就是在这种条件下要建设一座大桥，如何去克服困难。

In October 1995, a new bridge-the Fengpu Bridge was erected over the Huangpu River connecting Punan and Fengxian, and therefore becoming the fourth fully constructed bridge that opened for traffic after Xupu, Nanpu, and Yangpu Bridge.

1995年10月，黄浦江上又一座大桥凌空飞架，将浦南与奉贤连接起来，成为继徐浦，南浦，杨浦三座大桥之后建成通车的第四座大桥——奉浦大桥。

In this paper, a procedure of nonlinear analysis of the cable-stayed bridge was developed based on the nonlinear theory of structures using the finite element method, in which the vehicle-bridge interaction element based on the concept of dynamic condensation is used. The influence of vehicles on the response of the cable-stayed bridge is studied by employing the spung mass model and the bridge model with and without considering cable vibration modes.

本文拟应用非线性力学分析程序与有限元素数值计算法，建立斜张桥的非线性分析程序，应用VBI的车桥互制元素配合动态浓缩的观念，以悬浮移动质量模拟车体对斜张桥的影响，并对考虑与不考虑缆索振动模态两种分析模型，做一对应分析比较。

In order to improve the fire safety and reliability of an explosive device, a butterfly metal film bridge was prepared by adopting a magnetron sputtering technology with a mask. The bridge surface was smeared by 15-20 mg lead styphnate. The current safety testing, antistatic testing and the bridge wire comparative testing were used to study its properties of safety and ignition. Infrared thermal imaging technology was used to verify the heat distribution of the thin film bridge.

为了提高火工品的安全性及点火可靠性，采用掩模法，利用磁控溅射技术制备了一种蝶形金属薄膜桥，在薄膜桥表面涂15~20 mg斯蒂芬酸铅，进行了安全电流试验、抗静电试验及与桥丝的对比试验，研究了其安全性能和点火性能，并利用红外热成像技术验证其发火时桥区的热分布。

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。

Backgrounded by the main bridge of Zhanhe River Bridge at Chengdonghe Road,Pingdingshan City,the software MIDAS/Civil is used to establish a 3-dimensional finite element calculation model for the double X-shape arch bridge and the effect of arch rib sloping angle changes on the dynamic performance of the type of the bridge is studied respectively for six design alternatives.

以平顶山市城东河路湛河桥主桥为工程背景，采用有限元软件MIDAS/Civil建立该桥的空间有限元计算模型，分6种设计方案研究了拱肋倾角变化对斜靠式拱桥动力性能的影响。

Haihe River Bridge opened by the East and West Approach and the main bridge consists of three parts, the main bridge structure is designed to enact rotary steel beam, the net cross 68 meters, turning radius of 35 meters, beam rotation angle of 85 degrees, at the international bridge in the same belong to large-scale, long-span bridges of legislation to open one of the rotor.

海河开启桥由东西引桥和主桥三部分组成，主桥结构设计为立转式钢结构悬臂梁，净跨68米，转动半径为35米，梁端转动角度为85度，在国际同类桥梁中属于大规模、大跨径的立转式开启桥之一。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？