查询词典 span

Considering the factors such as randomness of natural lightning locus and the coexistence of primary and secondary leaders, it is necessary to lead in the concept of dynamic lightning protection shielding angle. It is suggested that the angular bisector of practical protective angle formed by ground wire or earth pin in UHVAC transmission line and conductor should be aligned with the direction of lightning leader as well as the ratio of vertical span to horizontal span and the impact of wind speed should be considered.

考虑自然闪电轨迹的随机性和雷电主先导与次先导并存现象等因素，有必要引入动态防雷保护角概念，建议特高压交流线路中地线对导线的实际保护角形成的角平分线应与雷电先导的来向一致，并应计及垂直档距和水平档距的比值和风速的影响。

The structure parameter influences on lateral stability, such as arch axis coefficient, arch high span ratio, crankle rigidity ratio of arch rib, vertical and lateral rigidity ratio of arch rib, lateral rigidity of bridge decking and arch rib ratio, crossbeam number, rigidity of crossbeam number the effect of non-orientedly conservative loadings of bridge deck and width span ratio, were discussed. Corresponding numerical charts were given, and they may be of some reference value and helpful to the parameter design of ribbed arches.

考虑了拱轴系数、矢跨比、拱肋抗扭刚度与横向抗弯刚度比、拱肋的竖向抗弯刚度与横向抗弯刚度比、横系梁在拱肋切平面内的抗弯刚度和拱肋的横向抗弯刚度比、横系梁在拱肋径向的抗弯刚度与拱肋的横向抗弯刚度比、桥面系的横向抗弯刚度与拱肋的横向抗弯刚度比、横系梁的数量、桥面系横向刚度引起的非保向力效应及拱肋间距与跨径的比对组拼拱横向稳定的影响，并给出了相应的图表，为拱桥设计时拱肋的结构参数的选取提供一定的依据。

Placement of late-span value is still an opportunity in the area in large numbers are more optimistic about the first 015 out cross-4,5,6,7,8, 2,3 cross-trumpet area to consider doing less, No. 016 concerns 4, 6,7,8,9 cross-out, rule out the possibility of three cross-value occurs, the first 017 candidates span the value of cross-3,5,6,7,9, 4,8 even cross there is little hope.

后期跨度值仍落点于中大数区的机会较多，第015期看好4、5、6、7、8跨开出，小号区2、3跨少做考虑，第016期关注4、6、7、8、9跨开出，排除3跨值出现的可能，第017期候选跨度值为3、5、6、7、9跨，偶数4、8跨出现希望不大。

By the research of contact wear loss of Circuit Breaker and on the basis of adopting the prior investigation it brings forward a compositive evaluation method and gives the remainder span on supposed conditions, and realizes the diplex Condition Monitoring of electric endurance and mechanical span.

通过对高压断路器触头电磨损的研究，在采纳前人研究方法的基础上，提出了一种综合评估的方法，并给出给定条件下的寿命裕度，实现电气寿命和机械寿命的双重监测。

The distribution and the variation of the pre-stressed effective quantities in the cross section of the beam are comprehensively analyzed by the FEA along with the variation of the span numbers, span length and linear rigidity ratio of beam to column, wherefore the effect factors and the specific conclusions of lateral restraints on the pre-stressed formation in the concrete beam are drawn.

本文以竖向支承构件有一定侧向刚度的预应力混凝土框架结构为研究对象，分析了框架梁受到柱的侧向约束时的受力机理，并运用有限元数值模拟计算方法全面分析了随着梁柱线刚度比、跨度、跨数等诸多因素的变化，框架梁中预应力有效量的分布和变化情况，得到了侧向约束对框架梁建立预压应力的影响因素和具体结论。

Deflection and strain of the given section are analysed through dead-load field test, Hanger endogen force, autooscillation character, impactor factor, damage ration of the main span and approch span are analysed.

在荷载试验方面，对测试截面的挠度和应变进行了分析，同时对吊杆内力及主桥和引桥的自振特性、冲击系数、阻尼比进行了分析。

In order to demonstrate the practicability of construction excogitation,further to ensure the security of the design and construction,this paper analysed the stress conditions of large span reticulated shell-string structure through simulating the process of construction,monitoring the whole construction process and the complete status of the large span reticulated shell-string structure us.

网壳施工时的受力情况不同于设计状态，应用ANSYS中的生死单元法，对大跨度双层张弦网壳施工进行模拟分析，并对施工全过程进行监测，将模拟计算结果与监测值、设计值进行比较，验证施工方案的可行性，确保了网壳在施工时的安全。

So far,a limited number of research papers are related to dynamic response of long-span flexible roofs.Gymnasium roof is a special topic of long-span flexible roof structures,a-nd it is important to study on wind load and gust loading factor in the field of engineering and research.

目前国内外对大跨度柔性屋盖的风振响应研究很少，本文研究的体育馆屋盖结构的风荷载及风振系数作为大跨度柔性屋盖结构的一个专题，具有重要的工程应用价值和学术研究意义。

To satisfy the clear height requirement, the span to height ratios of 20.4 and 22.7 were adopted for the simply supported reinforced concrete secondary floor beams with span of 12.245m and 10.225m respectively for tower A and B of Beijing Goldfield Center.

赵毅强1 ，柯长华1，程懋堃1 ，钱稼茹2，赵作周2，戴夫聪2，黄小坤3等［提要］北京金地中心工程塔楼A，B为满足建筑净高要求，采用了跨度为12.245m和10.225m，两端为简支的钢筋混凝土楼面次梁，跨高比分别达到20.4和22.7。

City of pool of long individual plant group " two model integrated form a complete set of level of state of social " construction reforms test division, its key is to want establish to span the strategic train of thought that type and intensive change development, with the technology innovation, system innovation and social innovation give priority to grasper, make pool of long individual plant city of especially big core, contemporary " of "3+5" of pool of construction long individual plant two model social " city group belt, form south with Guangzhou, north and Wuhan, on the west with Chongqing, east be opposite accordingly with Shanghai, can drive mid economy of Hunan economy and even our country to span the new-style industrialization that type develops is metropolitan area, develop countrywide economy the action of growth pole.

长株潭城市群"两型社会"建设国家级综合配套改革试验区，其关键是要确立跨越式和集约化发展的战略思路，以技术创新、制度创新和社会创新为主抓手，打造长株潭特大核心城，建设长株潭"3+5"现代"两型社会"城市群带，形成南和广州、北和武汉、西和重庆、东和上海相应对的、能带动湖南经济乃至我国中部经济跨越式发展的新型工业化大都市区，发挥全国经济增长极的功能。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。