查询词典 span bridge

The conversions of ice temperature and ice velocity occur from bridge to trough of terrain on the eastern Nyainqentanglha Range. The ice temperature at bridge is lower. The ice at bridge starts to move due to the larger gravitational driving stress. During the course from bridge to trough of terrain, basal ice temperature rises because of the friction. While reaching the pressure melting point of ice, basal decollement occurs, and higher velocities can still be produced at trough.

而位于念青唐古拉山东部地区的冰川，冰温和冰速从地形脊到地形槽处发生了较大的转化过程，在地形脊处冰温较低，受重力加速度的影响，冰川开始产生滑动，从地形脊到地形槽滑动的过程中，其底部受摩擦加热的影响，底部冰温升高，达到融化点，底部产生变形，到地形槽处仍会产生较大速度的滑动，因此冰川的运动从地形脊到地形槽处发生了转化，即地形脊处的滑动属动力过程引起的滑动，而地形槽处的滑动属热力过程产生的滑动。

Zhongshan Bridge Baita the foot of the mountain north of the city of Lanzhou in the Yellow River Iron Bridge, Lanzhou is the most long-standing history in the Old Bridge,"the world first Yellow River bridge," said.

中山桥位于兰州城北白塔山下的黄河铁桥，是兰州境内历史最为悠久的古桥，有&天下黄河第一桥&之称。

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。

Mountain suspension bridge has been built with the world\\\s major rivers, coastal waters of different suspension bridge, one of which is under the bridge the difficult terrain, there is no Yun Liang conditions, and the second is several hundred meters high bridge, lifting height is far more than the general crane requirements.

山区悬索桥与世界上已经建成大江大河，近海悬索桥不同，其一是桥下地形崎岖，没有运梁条件，其二是桥高数百米，起吊高度远超过一般吊机要求。

The results showed that the irradiation of γ-rays inhibited mitoses and produced various aberrations, such as single micronucleus, double micronucleus, multi-micronucleus, small micronucleus, chromosome fragment, chromosome conglutination, single bridge, double bridge, multi-bridge, dissociative chromosome, lagging bridge in root tip cells of Medicago sative L.

实验结果表明，γ射线辐照苜蓿种子可以抑制根尖细胞有丝分裂，并诱发根尖细胞产生单微核、双微核、多微核、小核、染色体断片、染色体粘连、单桥、双桥、多桥、游离染色体、落后染色体等多种畸变。

The thesis mainly includes: According to crane dynamic theory, established relevant dynamic model, and analyzed the dynamic properties of the bridge structure of the bridge crane, including the natural frequency, the model shape and the dynamic stress. A way to analyse the dynamic response of the bridge structure of the bridge crane which takes into account the dynamic properties of the steel rope pulley block has been explored successfully.

本文基于有限元理论和起重机动力学理论，以有限元分析软件ANSYS为平台，实现了计算机对钢丝绳系统和桥架的模态分析和瞬态动力学分析，得到的分析数据和结论对桥式起重机动态设计提供了有效的手段，论文主要内容包括：根据起重机动力学理论，建立了相关动力学模型，并对桥架结构进行动态性能分析（包括固有频率、振型以及动应力）的分析，探索出一种考虑钢丝绳滑轮组的动态特性在内的桥式起重机桥架结构动态应力分析的方法。

Third chapter mainly elaborates the measure bridge module"s composition and the design of its transfermation circuit , the strain foil"s temperature drifting and its the solution method, the measuring accuracy influence of long wire in electric bridge"s long-distance measuring and the method research,the research and design of DC strain bridge Auto-Balance and Auto-Calibration methods, the bridge"s electric source design as well as the measuring accuracy influence and solution research of bridges electric source.

第三章主要阐述了测量电桥模块的组成及其变换电路的设计，应变片温度漂移及其解决方法，电桥远距离测量长导线对测量精度的影响及方法研究，电桥自动平衡方法和自动标定方法的研究与设计，桥源的设计及桥源对测量精度的影响及解决方法研究。

Set water activities such as: floating bridge, cylindrical bridge, wood cylindrical bridge, steel wire bridge, etc.

设计浮桥、滚筒桥、木筒桥、钢丝桥等，开展水滑梯、碰碰船，布置溜索、独木桥等水上游艺活动。

Based on this,189 bridgesin the actual projects as a sample were selected,the connection between static test result anddanymic test result was built in this paper in order to assess the structure\'s bearing capacity bydynamic characteristics of bridge.The main contents are as followings:(1)On the base of actual observation records of bridge samples,the mechanicalproperties of the assembly slab bridge is obtained,and the mechanical characteristic ofhinged joint and bridge deck,the distribution of the guard rail in transverse direction are alsodiscussed.Based on the above analysis,the rational theoretical model is built,which offerssome reference to assess the structure\'s bearing capacity.

基于此，本文在实际工程项目中选取189座板桥作为样本，通过对样本桥梁实测静载挠度、应变和动载频率进行统计回归分析，建立桥梁结构动载试验结果与静载试验结果之间的关系，通过桥梁结构动力特性来评定结构承载力，论文主要完成了以下几个方面的工作：(1)以样本桥梁实测数据为基础反演装配式板桥受力特性，确定各种型式装配式板桥的铰缝受力特点、桥面铺装层受力特点以及护栏沿桥面横向分配原则，以此建立真实反映装配式板桥受力特点的理论计算模型，为装配式板桥承载力评定提供理论计算依据。

First, on the basis of sufficient study on the constructive condition of the main bridge of Tianxingzhou Bridge, different types of cross section of the steel truss beam, relationship between the length of steel beam node and quantity of steel, the shape of pylon, the form of anchorage and the structural system of the main bridge of Tianxingzhou Bridge are analysed.

本文以天兴洲大桥主桥的设计为研究对象，较为详细的研究了以下内容：首先，在充分研究天兴洲大桥具体建桥条件的基础上，研究了不同主桁断面形式，比较了各种节间长度对受力及用钢量的影响，分析了主塔的形式和索的锚固方式，对比分析主桥总体布置的不同方案，同时还对主桥下部结构方案进行对比分析；然后，对不同铁路结合桥面布置方案进行了对比研究，并计算了推荐方案在不同荷载工况下的受力状况。

There are two types of gold deposits in this area, namely altered rock type and quartz vein type.

本区金矿床包括两种类型：柴胡栏子金矿床为蚀变岩型金矿；莲花山和红花沟金矿床属石英脉型。

You were home and it was two weeks ago.

你回到了家里。当时是两周前。