It has a double arch, top and bottom. It's what makes an egg so incredibly strong.
它是双拱形的，上面下面都有。所以才使鸡蛋如此的坚固。
Shahegou bridge is a double arch bridge in Shandong Liaocheng city that firstly use anchor spray cement concrete to reinforce.
沙河沟桥是山东聊城首座采用锚喷混凝土加固的双曲拱桥。
According to measuring the coordinates of each span of long span double arched bridge, the arch axis for every span is determined.
通过测量拱腹各点坐标来确定双曲拱桥每孔的拱轴线。
It includes bent ends of bones, puncture marks, superficial linear marks, peeling, crenulated ends and double arch punctures on the chewed edge.
这种痕迹包括在咬噬边缘上骨骼末端的弯曲、刺穿印记、表面的线性印记、剥落、小圆齿状的末端和双拱形的刺印。
The results indicate that surface subsidence may arise from dilapidating segments and constructing middle brace of continuous-double arch.
另外，拆除管片并开挖时、施做中墙时均会引起地面较大的沉降。
This paper analyzes the reason of the double arch bridge's damages in theory, combined with the maintenance and reinforcement project of Yellow Dragon bridge.
本论文基于这种思想，结合黄龙大桥的维修加固工程，从理论上对双曲拱桥的病害原因进行分析，并总结了常见的加固方法。
Though 37 years passed after the double arch and flat shell structure applied in the water power engineering, the rubber canvas faceplate has never been used.
薄壳空间结构具有很多优点，我国在水工闸门中使用双曲扁壳结构的历史已有37年，但尚未见到采用橡胶布面板的。
From the turning which directed its course to the southwest, the river narrowed gradually and the channel lay between high Banks, over which the trees formed a double arch.
河身拐了一个弯向西南流去，再往上河床渐渐狭窄了，两岸很高，上面的树枝搭在一起形成一座拱门。
Described in this paper is the application of arch filling method for widening and strengthening double arch Bridges, including precautions to be taken during the design and construction.
本文叙述填芯加固法在双曲拱桥拓宽加固中的运用以及在设计和施工中应注意的事项。
The paper gives a detailed introduction to the typical structure and manufacturing method of drum, waterwall, burner and waterwall header of the 300mw double arch furnace boiler produced by DBC.
文章以DBC制造的300MW“W”形火焰锅炉为例，详细地介绍了锅筒、水冷壁、燃烧器和水冷壁集箱的典型结构和制造方法。
Two arch ribs are installed in transversal direction to form a"double bow system".
四川绵阳飞云大桥的主桥系三跨系杆拱桥，横向设两根拱肋，构成“双弓体系”。
In this article, authors state construction technology study achievements gained in construction of the Huxiuling double lines multi-arch tunnel and their application.
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。
The geological condition of Yuanmanguan RCC double-curvature arch dam of very complex, and there are eight crannies and nine faults.
园满贯碾压混凝土双曲拱坝地质条件复杂，坝区内有八组裂隙和九条较发育的小断层。
This problem had occurred under corner tangential firing and wall opposed firing, and it became even more serious under W-shaped flame double-arch firing.
四角切向燃烧和墙式对冲燃烧方式都有此问题，而W火焰双拱燃烧锅炉则更严重，值得关注。
Combined with the construction experience, the paper discussed the key technology of double multi-arch tunnel construction for reference.
结合近年来的施工经验，对双连拱隧道施工主要控制点的关键技术进行阐述，供今后的工程施工参考。
Based on the construction of Jiuwanxi Bridge, the paper describes the integral lift and assembly technology of steel tube arch in segment of double rib with cable crane.
结合九畹溪大桥施工实例，详细介绍采用缆索吊分段双肋整体吊装钢管拱施工技术。
In the project design of the Dongfeng Hydropower Station, the super thin high double curvature arch dam at the world level has been finally selected according to the continuous optimization design.
东风水电站工程设计中，经过不断的优化设计，最终选用了具有世界水平的超薄高双曲拱坝；
The road double lines multi-arch tunnel has such advantages as low ground area, easy connection with other lines and so forth, and is adopted more and more widely in high grade road construction.
公路双线连拱隧道以其占地少、与线路连接方便等突出优势在高等级公路建设中被越来越多的采用。
The Optimum Control Theory is applied to establish the double objective model and energy model for dynamic optimization of arch dam.
本文用最优控制理论建立双目标模型与能量模型对拱坝进行动力优化分析，两模型综合考虑拱坝的安全性、经济性和稳定性。
Yangmingsha Hydropower station dam is a C15 small size aggregate concrete stone masonry double curvature arch dam with crest spillway and flip buckets for energy dissipation.
阳明山水电站拦河坝采用C15细石混凝土砌石双曲拱坝，坝顶表孔泄洪，挑流消能。
The Linhekou Hydropower Station has a RCC double-curvature arch dam.
蔺河口水电站大坝为碾压混凝土双曲拱坝。
The principle of this paper is compatible with each kind of arch aqueducts, such as double-curved arch aqueduct, ribbed arch aqueduct, trussed arch aqueduct etc.
本文原理对双曲拱渡槽、肋拱渡槽和桁架拱渡槽等，都是适用的。
The double-arch tunnel passes through a big water-eroded groove by setting foundation beam method.
双跨连拱隧道以设置地基梁的方式穿过大型溶槽地段。
In recent years, the double-arch tunnel has been widely used in vehicular tunnel construction, which has new structural style and many other advantages.
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。
The model simulates the discontinuous rock body of dam foundation, the mechanical properties of rock and the entire double curvature arch dam.
试验过程模拟大坝基础的不连续岩体条件、岩体力学特性和整体双曲拱坝。
The article describes the technical features, main construction and design performance of DG 600MW double-arch furnace boiler.
介绍东方锅炉（集团）股份有限公司600MW机组“W”型火焰锅炉的技术特点、主要结构及设计性能。
The construction plan of double-joined arch is validated using numerical simulation when dilapidating segments to construct single connecting tunnel between two shield-driven tunnels in this paper.
应用数值模拟方法研究了在盾构法修建隧道的基础上拆除管片修建渡线隧道中双联拱段方案的可行性，研究表明双联拱方案是可行的；
The excavation of the rolled concrete double-curvature arch dam and gravity dam in Dahuashui hydroelectric station in Guizhou adopted deep-hole graded slight differences demolition.
贵州大花水水电站碾压混凝土双曲拱坝、重力坝开挖采用深孔梯段微差爆破。
The excavation of the rolled concrete double-curvature arch dam and gravity dam in Dahuashui hydroelectric station in Guizhou adopted deep-hole graded slight differences demolition.
贵州大花水水电站碾压混凝土双曲拱坝、重力坝开挖采用深孔梯段微差爆破。
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