查询词典 span

Firstly, the definition of reverse cumulation span is given.

给出了反向累加生成的定义，主要讨论反向累加生成基矩阵构成，得到了反向线性累加生成空间。

Meanwhile, taking the mutual shading effect of the neighboring spans into account, the direct solar radiation of arc vault of both east-west and south-north oriented multi-span greenhouse at noon on the day of winter solstice was calculated using the curvilinear integral method.

对东西走向和南北走向的华东型连栋塑料温室采用曲线积分的方法，在考虑相互遮荫的情况下，模拟计算了在冬至日正午时各种拱顶切角双圆弧屋面的采光性能。

Course of the largest span cylindrical shell in Asia. It is proved to be effective and applicable.

最大跨柱面网壳的施工中并取得了圆满的成功，证明了这项新技术的正确性和实用性。

In a curious juncture, a wrinkled span of desert dunes pours into the Columbia River Gorge in The Dalles, Oregon.

在一个古怪的接合点，一段皱巴巴的沙丘正川流不息的涌入美国俄勒冈州达拉斯的哥伦比亚河峡谷。

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。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。