跨度

That is to say, in the light of the principles including integra ting resources-environment with socio-economy and combining spatial span with tem poral limitation, etc., the index system designed contains five grades and fifty -two single factors, and the three comprehensive evaluations taken includes sys t em clustering, gray constellation clustering and fuzzy integrate analysis. Three appraisal results validate each other, which are approximately consistent.

自 下而上途径采用综合评价指标体系，即按照资源环境与社会经济相结合和空间跨度与时间跨度相结合原则来设计指标体系(5个层次、52个单项因子)，然后进行系统聚类分析、星座聚类分析和模糊综合分析三种综合评价，各种评价结果相互验证，其结果大体一致。

Due to their high strength and overall performance, the panels can be used as division and partion wall even the wall is very high and wide. Only steel structure should be used for fixing which is unstalled inside the wall and it is unnecessary to add wall posts. The anti-blast performance is 1.5 higher than that of brick wall.

由于强度高，整体性能好，因此可用作层高高、跨度大的墙体间隔，只要简单地采用钢结构锚固，型钢埋设于墙体内，大跨度，层高高的墙体就无需增加墙面的柱体，其抗冲击性能是一般砌体的1.5倍。

Large span catenary arch bridge is becoming more and more popular in recent years.

近年来大跨度悬链线拱桥在我国得到了广泛应用，随着其跨度的不断增大，稳定问题成为设计和施工中的关键问题。

As the economic index of the ordinary long span solid abdomen type portal rigid frame will drop along with the span increasing, a new type of way is presented in this paper, which is fixing up horizontal prestressed cables at the joints between beams and columns.

本文针对普通大跨度实腹式门式刚架随着跨度的增大经济性指标下降的问题，采取另一种方法，在门式刚架的梁柱连接处布置水平预应力拉索。

As for the roof of the gym, constructors use two floor arch housings as the roof structure with 165 meters span from east to west, 105 from north to south and set supporting facilities at the same time.

场馆屋顶采用两片落地拱壳作为屋顶结构，东西跨度165米，南北跨度105米，同时设置配套设施。

The stretching influence on the near trusses should be considered when using the stretching-twice method, and the construction is hard to be controlled. The Harbin exhibition sports center with a 128m support span, attached to a deep design calculation of the super-large span prestress truss string structure, stretching once in tension bed method is brought forward for the bottom cable of the single truss string structure. From calculation research on the friction force between the tension bed and the truss string structure, the friction influence is considered for the displacement method of the middle of span, with the action of the fixed cable stress. This method, with vertical displacement of the middle of span as its main control target for prestress stretching, is successfully applied in the prestress stretching construction of the project.

二次张拉需考虑张拉对相邻桁架的影响，施工控制难度大，本文结合哈尔滨会展体育中心支座跨度128m的超大跨度预应力张弦桁架结构的深化设计计算，提出了单榀张弦桁架下弦拉索胎架一次张拉法施工方法，通过对张拉阶段胎架与张弦桁架间摩擦力的计算研究，定量索力下跨中位移法考虑摩擦力影响，以跨中竖向位移作为预应力张拉的主要控制指标，成功地完成了该工程预应力张拉施工。

In this dissertation, construction methods of long span arch bridges are reviewed firstly, and the lifting process of Shengmi Bridge's arch ribs is illuminated in detail. In succession, the status of study of wind-resistance in long span bridge construction is presented, and then the necessity of work of this dissertation is brought forward.

本文首先回顾了大跨度拱桥的施工方法，详细说明了生米大桥主拱肋吊装的施工过程，接着介绍了目前大跨度桥梁施工期间抗风研究的现状，提出了进行本文工作的必要性。

As high speed development of the traffic industry, the need for long span pre-stressed concrete continuous curved box-girder bridges in construction of highways, urban overhead crossings and viaducts is bigger and bigger. But the existing computing method cant satisfy the precision demand hi analysing long span curved box-girder bridges.

随着交通运输事业的蓬勃发展，由于高速公路、城市立交桥和高架桥的日益增多，大跨度曲线箱梁桥的应用需求越来越大，而现有的简化计算方法对于大跨度曲线箱梁桥的计算分析尚存在一定的困难。

The results show that the wind loads on the roof structure are mainly suctions. and the wind loads on the windward and leeward of the roof structure near the ground are positive. The differences among the results of four turbulence models were not notable.

结果表明，此类大跨度椭球屋面风压分布主要以吸力为主，靠近地面的屋面迎风面和背风面风压为正压。4种湍流模型的模拟结果之间差异较小，数值方法能够较准确地模拟该类大跨度椭球屋面的风压分布。

The crossover tunnel has such features as a large span, a shallow coverage and many sections with complex structures; in addition, there are also many municipal pipes such as rain water pipe over the tunnel, so the ground subsidence must be restricted strictly to insure the safety of surrounding environment.

该隧道具有&隧道跨度大（最大跨度22.1 m），埋深浅，断面类型多、结构复杂&等特点，隧道上方有雨水管等市政管线，地层沉降控制难度极大。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。