查询词典 major bridge

During the period of construction by the cantilever erection construction method, bridge experiences not only the process of generating girder in the stage of T rigid frame, but also the process of system transformation, so bridge has experienced a great complex stress process, in order to ensure the security of bridge during the whole stage of construction, the stress control and geometry control must be made during the stage of construction of bridge.

近些年来，我国随着经济的快速增长，出现了建造大跨度桥梁的高潮，预应力混凝土技术的迅速推广应用以及建造预应力混凝土连续梁桥的各种先进施工方法应运而生，加快了桥梁的施工进度，使得预应力混凝土连续梁桥的跨越能力不断增大，悬臂拼装施工方法就是在这种背景下产生并发展起来的。

For the purpose of make the type of the bridge corresponding with the ambience and cost saving, this paper provides two different types of bridge for selection: the first one is pre-stressed concrete continuous bridge; the second one is double cantilever half through no-thrust arch bridge.

对该桥的设计，本着&安全、经济、美观、实用&的八字原则，本论文提出两种不同的桥型方案进行比较和选择：方案一为预应力混凝土简支梁桥，方案二为拱桥。

Sigh bridge connecting this has Karrer Palace and the old prison small bridge, called the Bridge of Sighs. said an inmate over this bridge will never be a day Yue.

叹息桥 这座连接都卡雷宫和旧监狱的小天桥，被称为叹息桥，据说犯人一过此桥便永无天曰了。

Piazza San Marco,(Piazza del san.marco) as the most romantic squares, pigeons here is the greatest feature Bridge of Sighs, Bridge of Sighs connecting the two buildings are the courts and prisons; In general, people enter the prison will not go out alive, and the Bridge of Sighs became the last of their only place to see the sun, After prisoners here will be sent to Buzi Jin A Sigh, with the passage of time, the sigh sigh on a "Bridge of Sighs"...

圣马可广场，(Piazza del san.marco)被誉为最浪漫的广场，鸽子是这里最大的特色叹息桥，叹息桥连接的两座建筑物分别是法院和监狱；一般来讲，进入监狱的人都不会活着出去的，而叹息桥就成为了他们最后唯一可以看见阳光的地方，因此，囚犯们经过这里的时候都会不自禁地发出一声叹息，久而久之，这些叹息就叹成了&叹息桥&了……总督宫，威尼斯共和国时期的最高权力机关；粉红色的大理石外墙，连续的尖型拱门和四辨花型圆窗，属于典型的哥特式风格。

In order to reduce calculation error, the frequency distribution of average values is used to compute the mixed distribution's digital features of each component distribution, thereinto, the number of the component distribution is determined by AIC, choose the number that meets the minimum value of AIC as the component number of mixed distribution, and the other parameters are estimated by EM algorithm; Secondly, because each component distribution is corresponding to a kind of major gene genotype, according to the values of the average and variance of the each component distribution, we can use the limit error of the normal distribution to plot each individual into the correspondent component distribution, namely into correspondent major gene genotype. Then we regard each major gene genotype as a treatment level of one-way analysis of variances, and the one-way multivariate analysis of variance is carried out to calculate the covariance matrix of major gene effect, covariance matrix of polygene effect, covariance matrix of environment effect and so on; At last, combining the weights of the each component distribution of mixed distribution, we can calculate the variance of major gene effect, the variance of polygene effect, environmental variance and the genetic gain of the quantitative trait.

为减小计算误差，本研究采用均值的频数分布来计算各成分分布的数字特征，其中成分分布个数根据AIC准则，选择使AIC值达到最小的成分分布个数作为混合分布的成分分布数，分布中其它参数的确定利用EM算法来估计；其次，每个成分分布对应一种主基因基因型，根据各个成分分布的均值和方差，利用正态分布的极限误差将每个个体划分到相应的成分分布中，即相应的主基因基因型中，将每种主基因型作为单因素方差分析的一个处理水平，对其进行单因素的多元方差分析，分别计算主基因效应协方差阵、多基因效应协方差阵、环境协方差阵等参数；最后结合混合分布中各成分分布的权重即各主基因基因型的分离比例，计算主基因效应方差，多基因效应方差和环境方差，以及遗传力等参数，进而计算该数量性状的遗传进展。

Bridge laying on both sides along the elevated track on the vertical run, lifting trolley along the bridge in laying the track on the horizontal run, a rectangular scope of work, you can take full advantage of the air bridge Below

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，构成矩形的工作范围，就可以充分利用桥架下面的空

Namely, bridge rigidity is described by using the transverse, vertical and twist angle of the bridge deck at the beam end, and the vertical change rate for the transverse, vertical and twist angle of the bridge deck at non-beam end under design load.

针对我国新建桥梁跨度和结构形式远远超出现有桥梁设计规范的适用条件，以及国内外桥梁刚度指标和取值存在较大差异，进行铁路桥梁刚度描述方法和预应力混凝土连续梁桥刚度的限值研究。

Bridge deck pavement is a important pavement structure of bridge's appurtenant works, and the shorting using life is always a difficulty which puzzles bridge workers.

桥面铺装是桥梁附属设施中一种重要的构件，其使用寿命短一直是困扰桥梁养管部门的一个难点。

The simple solutions to the resembling balanced bridge problems;2. The method based on un balanced bridge and balance bridge principle to check direct-current system insulation situation at the same time was designed.

分析了采用常规平衡电桥原理的直流绝缘监察技术存在的问题，提出了采用不平衡与平衡电桥原理相结合来检测直流系统的绝缘状况，并给出了设计方法。

The conditions for a bridge balance must be fulfilled in order to balance the bridge circuit necessary for a measurement of the unknown element.Many technical school laboratories have such various types of bridges set up to teach bridge theory.

测量未知元件必须满足使电桥电路达到平衡所需的平衡条件，许多技术学校实验室具有这样一些不同类型的电桥，用于讲授电桥原理。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。