查询词典 pointed arch

In order to solve those problems, this article adopts the energy method to analyze the stability of the major frame of steel arch gate to make up the weakness in the current standards and found the calculating models of the stability of the whole major frame of the steel arch gate.

本文主要采用能量法对弧形钢闸门主框架线弹性稳定性进行分析与研究，建立单柱概化弧形钢闸门主框架整体稳定的计算模型，并通过选择合适试解函数，应用能量法给出特征值方程及弧门框架稳定性计算长度系数精确解的公式，提出一个基于该模型方便工程设计的实用计算公式。

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。

Smooth curved arch of the main line, symmetry and light Fuzhao four small arch, as if the four giant Yuhuan, decorated in the fall of the deck.

弧形平坦的主拱线上，对称地轻伏着四个小拱，仿佛四个巨型玉环，装饰在桥身两肩。

A numerical model is developed based on the arch dam nonlinear dynamic analysis program ADAP-88 to simulate the strengthening performance of damper measurers installed in arch dams.

本文在已有的拱坝非线性动力分析程序ADAP-88中加入阻尼器模型，开发完成了可考虑阻尼器抗震加固措施的数值分析程序，并将该程序应用于大岗山拱坝的非线性动力反应分析中。

Objective To study the brain function protection effect of mid-position clamping of aortic arch and parallel circulation in the entire arch replacement surgery.

目的 探讨在全主动脉弓置换手术中采用中位阻断主动脉连续单侧脑灌注对脑功能的保护效果。

Objective To study the brain function protection effect of mid-position clamping of aortic arch and parallel circulation in the entire arch replacement surgery.

作者：张建卿程兆云顾以茼肖明第目的探讨在全主动脉弓置换手术中采用中位阻断主动脉连续单侧脑灌注对脑功能的保护效果。

The Stewart Mountain Dam located 41 miles (66 km) east of Phoenix, Ariz., on the Salt River, was completed in March 1930. The structure contains an arch dam, two thrust blocks for simulating abutments for the arch dam, three gravity dams, and two spillways.

绪论：Stewart大坝位于亚利桑那州，凤凰岛东部66Km的盐河上，于1930年3月建成，主体结构包括一座拱坝，两座模拟拱坝拱端的推力墩，三座小重力坝和两个溢洪道。

This paper used foot arch index to investigate the growth of the foot arch of infants,children and juveniles.

本文采用较能客观反映真实足弓的指标——足弓指数，对幼儿、儿童和少年足弓发育情况进行研究。

I Arch Bridge Pier through the current design, a better understanding of the design of the arch bridge, we should be in accordance with applicable, the economy, safety and proper care for the principles of aesthetic design, the basis of these principles in light of the actual situation and the specific reasonable design.

我通过此次拱桥墩台设计计算，进一步了解在拱桥的设计中，我们应按照适用、经济、安全和适当照顾美观的原则进行设计，根据这些原则，结合实际情况，具体地合理地进行设计。

Horizontal push will arise Pier displacement of the through arch bridge of concrete-filled steel tubes under the condition of erection of arch ribs , concreting process, transverse beam pouring and installation.

下承式钢管拱系杆拱桥在拱肋安装、钢管混凝土浇筑、横梁安装和现浇横梁、桥面板湿接头时对拱脚产生的水平推力极易造成桥墩位移，通过对不同过程中的水平力计算，确定体外束张拉方案，使水平力通过体外束得以平衡。

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。