查询词典 span blocks

Photo of the Day January 24, 2008 Sand Dunes, The Dalles, Oregon, 2001 Photograph by Jim Richardson In a curious juncture, a wrinkled span of desert dunes pours into the Columbia River Gorge in The Dalles, Oregon.

位于俄勒冈州，达拉斯有一个古怪的结合点那就是具有皱纹横越沙漠，沙丘涌入哥伦比亚河的峡谷。

Where G and Q are the total dead and live load on the span, respectively.

其中G和 Q分别是跨度上的静荷载和活荷载。

Orthotropic and exodermic decks are becoming increasingly popular on long-span structures as a means of reducing dead load.

正交各向异性和exodermic牌是大跨度越来越受欢迎作为一种手段，降低结构自重荷载。

With the increase of bridge span, it is of crucial importance to decrease the deadweight of the superstructure.

随着桥梁跨度的增加，减轻上部结构的自重成为十分重要的问题。

This text passes correctly elm two of Daqing oil field is united --One Song unite person who bury oil pipeline scene to live in environment survey and study, is it take a sample test , environmental corrosivity survey , corrosivity measuring of pipeline and assess of soil to excavate, is it cause person who bury pipeline antiseptic layers of invalid main factor to find out , confirm the environmental grade of corrosion of soil according to environmental comprehensive physics and chemistry index of soil, grasp pipeline antiseptic invalid law of layer , study antiseptic layers of resistivity decay law and to influence that negative pole protect, is it suitable for person who bury antiseptic layer of life-span of the pipeline calculate formulae and actual effect criterion model to propose on the basis of this text, illustrate and simply analyse oil field long to fail person who bury antiseptic layer of surplus ability to work of the pipeline, unite for elm two --One Song unite pipeline antiseptic maintenance of layer , is it put forward science rational suggestion to change.

本文通过对大庆油田榆二联——宋一联埋地输油管道所处环境的现场调研、开挖取样化验、环境土壤的腐蚀性勘测、管线的腐蚀性检测和评估，找出引起埋地管道防腐层失效的主要因素，并根据环境土壤的综合理化指标确定该段环境土壤的腐蚀等级，掌握管道防腐层的失效规律，研究防腐层电阻率衰减规律及其对阴极保护的影响，在本文的基础上提出适用于埋地管道防腐层寿命计算公式和失效判据模型，例证和浅析油田长输埋地管道防腐层剩余工作能力，为榆二联——宋一联管道防腐层的维修、更换提出科学合理的建议。

The theoretical calculations for the mid-span deflection and bottom plate strain of the steel girder are found to be in good agreement with the experimental results. This indicates that the model established and the governing differential equations derived in this dissertation are correct and efficient.

论文中所提出的预应力简支钢箱梁理论的分析方法，对解决配置有曲线型预应力钢索的钢梁的非线性问题来说是一种精确而简便的计算方法。

Furthermore,we will design an automatic opto-electronic deflection measurement system based on connected pipes which can be practised in the long-span bridge.

以设计能实用于大跨度桥梁挠度自动监测的光电挠度测量系统。

For cable stayed bridge of single tower cooperative system that are often used in practice,the cable tower and beam s character of this system in deflection and mechanics from the length without cable and the ratios of depth of beam to main span is analyzed.

对于工程中常见的独塔不对称协作体系，从主跨无索区长度及主梁的高跨比着手，分析协作体系斜拉桥索、塔、梁的受力及变形状态，对上述设计参数提出合理的取值范围。

The seismic performance such as failure pattern,fai lure mechanism,hyst eresis loop curves,restoring-force model,displacement-restoring capacity,displac ement ductility,rigidity degradation and energy dissipation of two pieces of HPC frame with double-story and double-span are studied systematically by testing o f low reversed cyclic loading.

通过低周反复荷载试验对两榀双层双跨高性能混凝土框架的破坏形态、破坏机制、滞回曲线、骨架曲线、恢复力模型、变形恢复能力、位移延性、刚度退化、耗能能力等性能进行了较为深入系统的研究。

And tonight is my first time on C-SPAN, which is a channel I obvious always watch when I couldn't stand the sensationalism and demagoguery of PBS and QVC.

今晚是我第一次出现在 C-span 频道，通常当我无法忍受 PBS 和 QVC 的鼓吹与煽动时我就会看这个频道（ PBS 的节目以主观著称， QVC 则是购物频道）。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。