建筑学中，拱道或门口的拱心石，是把建筑整体连接在一起来防止它倒塌的石头。
In architecture, a keystone in an archway or doorway is the stone that holds the whole thing together, and keeps it from collapsing.
计划中的大号拱心石石油管道将用于运输产自加拿大油沙的重原油。
The proposed Keystone XL pipeline would carry heavier crude oil produced from tar sands in Canada.
犹如弯弓的单拱，在与人行通道连接之处是非常之薄，在向地面延伸的过程中逐渐变厚。
The bowed arches of the single-span design are dramatically thin where they connect with the walkway, but they flare out as they approach the ground.
此方法运用于某拱梁的快速优化设计中效果良好。
The result of the optimal design of an arch girder with this method is good.
条形照明灯突出了拱腹，并且再次强调了设计中无处不在的三角形。
Strip lighting highlights the soffits and again reinforces the ubiquitous triangular shapes within the design.
若命盘中月亮落在金牛座且位于第二宫之内，与木星形成刑或冲的出相位，且与太阳形成拱的入相位时，则盘主会拥有大量的财富。
He that hath the Moon in Tairus in the second separating from the square or Opposition of Jupiter, and applying to Trine of the Sun shall obtain very considerable riches.
在晶格中的每个拱相交都由相同的螺栓连接堆叠lvl层固定而成。
Each arch intersection in the lattice is secured with the same custom bolts that connect the stacked LVL layers.
在拱梁组合桥梁设计和施工分析中，确定成桥状态时的吊杆张拉力非常关键。
In design and construction of composite arch and Beam bridge, it is very important to determine the boom tensile force when the bridge is almost completed.
同时结合有限元数值分析技术，对小金口双连拱隧道的施工过程进行了监控，确保了隧道施工过程中围岩的稳定及支护结构的安全合理。
By the field monitoring measurement and the applying of FEM, we can monitor the construction procedure to ensure the stability of the surrounding rock and the safety of lining.
表面出现了轻微的起拱，这也是要在翻新过程中解决的。
The surface a slight bagging, which is to be resolved in the refurbishment process.
介绍了在黄土地区双连拱隧道中墙的选择及施工过程，并分析了如何加强对中墙的监控量测等。
The paper introduced the choice and construction process of loess multi-arch tunnel middle wall, analyzed monitoring and measurement of strengthening the middle wall for reference.
分析及控制拱肋吊装施工过程中的扣索受力成为设计、施工人员共同关注的问题。
Tension analysis and control of cables in the process of lifting construction of span arch is attract the attention of architect and engineer.
本文就修建岵岫岭双线连拱隧道过程中开展的施工技术研究成果和应用情况做了介绍。
In this article, authors state construction technology study achievements gained in construction of the Huxiuling double lines multi-arch tunnel and their application.
针对链条炉排锅炉固定式炉拱结构在运行中存在的诸多缺陷，研制出活动炉拱。
In view of the drawbacks of the chain boiler fixed arch in operation, has been developed the moving arch.
通过预测得出的结果证实了块体理论在高速公路连拱隧道超挖预测中的适用性。
The result of forecasting is consistent with the fact one. The applicability of block theory in overbreak of doubled arch tunnel is tested.
根据深基坑桩排式支护中护壁桩的受力变形特点，分析了被支护土体中的成拱作用。
According to the working characters of retaining piles for deep excavation, the arching effect in adjoining soil is analyzed.
实际工程中的拱结构并不是采用固支或简支等理想刚性支承，而是具有弹性支承、阻尼支承等柔性动边界。
Rigid supports like clamped and simple supports are not actually adopted at the ends of arches in the engineering, but flexible supports such as elastic supports, damping supports are adopted.
斜拉扣挂施工中索力计算复杂，根据“零弯矩法”概念，推导出拱肋节段吊装中各施工阶段扣索索力的计算公式。
On the basis of conception of zero moment, we can deduce the computational formula of the tension of cable in the different construction stage of the steel tube arch ribs.
其次介绍了一个经典的拱的弹性弯扭屈曲试验，并采用有限元商业软件ANSYS中的SHELL63单元和BEAM189单元分别进行了模拟。
Secondly, a classical elastic flexural-torsional buckling tests on arch is introduced, which is simulated by shell element SHELL63 and beam element BEAM189 of commercial software ANSYS.
本文论述起重机主梁的上拱度及预拱曲线的基本原理，介绍了国内外起重机技术标准中规定的上拱度值。
This paper discusses the question of crane main girder camber and the pre-cambering curve, introducing camber values stipulated in related crane standards in China and abroad.
近年来，双连拱隧道以其新颖的结构形式和自身的优点被广泛应用于公路隧道的建设中。
In recent years, the double-arch tunnel has been widely used in vehicular tunnel construction, which has new structural style and many other advantages.
研究表明，支架上方顶煤体中能够形成“拱”结构，该结构的存在将对工作面矿山压力显现产生显著影响。
The research results showed that an arch structure would be formed in the top coal above the supports.
在屋面结构中，采用拱与网壳杂交的“拱-壳”组合体系，而拱与网壳采用V形撑进行连接。
In the roof, the "arch-shell" combinatorial system is adopted, the arch and the latticed shell is linked with the latticed shell by V branch.
在连拱隧道施工中，中隔墙扮演着至关重要的角色。
During the construction of double-arched tunnel, the role of center pillar is of great importance.
利用平面有限元理论分析并优化了双连拱隧道的设计，并在施工中取得很好经济效果。
It had made an analyse and optimized the the design of two-arch tunnel by making use of plane FEM theory analyse, and this received good economical effect.
掘进过程中的支护采用湿喷混凝土，3米厚的基底和穹拱衬砌采用浇注混凝土。
Wet sprayed concrete for supporting purposes during the drive, in situ concrete for the up to 3 m thick Base and for lining the vault.
结果表明，在预应力拱架结构的抗震研究中，需同时考虑水平和竖向地震作用。
Some results are indicated that horizontal and vertical seismic force must simultaneously be considered in the seismic study and design of the prestressed-arch structures.
结果表明，在预应力拱架结构的抗震研究中，需同时考虑水平和竖向地震作用。
Some results are indicated that horizontal and vertical seismic force must simultaneously be considered in the seismic study and design of the prestressed-arch structures.
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