查询词典 Boolean calculation

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。

The calculation of parameter m_0,that is the amount of CO_2 absorbed by unit volume of concrete completely carbonated,was proposed by the analysis of concrete hydration process and carbonation mechanism,and the simplification formula of fly ash concrete applied in practice was suggested.The calculation of another important parameter D_e,that is the effective diffusion coefficient,was also proposed on the basis of the mechanism gas diffusion in concrete.

通过对混凝土水化过程、碳化机理的深入分析，提出了模型参数——完全碳化时单位体积混凝土吸收二氧化碳的量m_0的计算方法，并给出了工程中常用粉煤灰混凝土的简化实用公式；基于气体在混凝土中扩散机理的分析，给出了另一个重要的模型参数——二氧化碳在混凝土中有效扩散系数D_e的计算公式。

In accordance with the principle of the second forming, by study on three-dimensional cutting model principle and calculation method, we have acquired 5 kinds calculation of 10000 m~3 natural gas shell plate, solved the main technical problem of precision cutting technology of long groove of shell plate.

5按照二次成型原理，通过对立体切割胎具切割原理及计算方法的研究，解决了10000m~3大型天然气用5种类型坡口切割胎的计算方法，以及大长坡口精确加工技术中切割胎的主要技术难题。

The strict stability criteria for bulk grain carriers make the stowage calculation extremely complicated. Described here in this paper is a newly-developed software system for the calculation of the stowage of bulk grain carriers. And put forward the simplified method in checking the stability and strength of bulk grain carrier according to the situation that calculating checking the stability and strength of bulk grain carrier is very complex.

由于其稳性衡准的特殊要求，使得该类船舶的积载计算甚为复杂，本文所开发的散装谷物船舶装载计算软件系统，针对生产运输中散装谷物船舶的稳性计算复杂、校核繁琐的现状，对简化其稳性、强度校核提出了具体的方法。

By comparison with several examples, it is shown that the two kinds of similar Haar wavelet transforms have higher calculation precision, abilities of better de_noise, and lower calculation complexity.

通过比较，证实了这两种相似的小波变换具有较高的计算精度和较好的消噪能力，且具有较低的计算复杂度。

Including: to enclose to protect the calculation and selection of scheme of hot load of the structure heating ,selection ,waterpower calculation and heating room coil design and selection of appendix of basement heating scheme and economically analyses and CAD drawing .

设计主要包括：设计方案的经济性分析和择优确定；设计概预算；采暖、供热外网热负荷的计算、给排水负荷的计算；采暖、给排水、热网的水力计算；热力站的设计；以及管线、设备的布置，附件的选择，CAD制图等内容。

The article analyses the existing calculation method of pin shaft joint partial strength, study the finite element modeling problem of pin shaft joint in girder structure and specific calculation procedure.

分析销轴联接局部强度现有计算方法，探讨梁杆结构中销轴接头的有限元建模问题及具体的计算过程。

It was pointed out that the calculation formula for stress of laminated beam without pin joint in interlayer under bending experiment from relevant literature is wrong, and the calculation formulas for bending stress of laminated beam with or without pin joint in interlayer were rederived.

指出了有关文献推导出的上下梁层间无销钉连接叠层梁弯曲应力计算公式是错误的，重新推导出了上下梁层间无销钉连接与有销钉连接的叠层梁弯曲应力计算公式，对学生正确理解和认识叠层梁弯曲实验有理论指导意义。

At present,a comparative mature and unified calculation method of the cost of treatment of karsts cave in bridge pile foundation has not yet come into being in China,so there is a biggish divergence in the calculation method of costs between the owner and the construction enterprise.

目前，桥梁桩基溶洞处理费用在我国还没有形成比较成熟和统一的计算方法，业主与施工单位双方关于发生费用的计算方式存在着较大的分歧。

Analyze and discuss the pattern selection of transposition tower of 500 kV transmission line and its displacement calculation,and deduce a simple and reasonable calculation method to solve practical problems in engineering.

分析探讨了500 kV输电线路换位塔型式的选择及其位移计算，并推导出一个简单合理的计算方法，以解决工程中遇到的实际问题。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。