Roman builders perfected the semicircular arch made of separate blocks of stone.
罗马的建造者完善了由不同的石块构成的半圆形拱门。
That invention was the arch, a curved structure originally made of separate stone or brick segments.
这一发明就是拱门，一种最初由分段的石头或砖块组成的弧形结构。
Ponte Vecchio in Florence is one of the famous tourist attractions in Italy, and considered as the oldest stone arch bridge in Europe.
佛罗伦萨的维奇欧桥是意大利最著名的旅游景点之一，并且被认为是欧洲最古老的石结构桥梁。
According to the service life limit of stone room and surrounding rock, the circumstances of bearing force are analyzed. On basis combination arch theories, the support parameters are computed.
根据硐室的服务年限及围岩岩性，分析了硐室的受力情况，依据组合拱理论计算出支护参数。
For a stone arch bridge with a given arch centre line and a given loading condition, there exists a minimum thickness limit for the arch ring.
给定拱轴的石拱桥，对应于每个荷载工况，拱圈有一个最小极限厚度。如果拱圈厚度等于或小于这个极限，石拱将出现三个以上的铰而破坏。
The internal force of stone arch bridge in the course of cracking at arch foot was computed using the spatial finite beam element method.
采用空间梁单元对实际的石拱桥拱脚开裂现象进行了有限元模拟分析。
With the advantages of easily obtained structure and strong durability, stone arch Bridges are widely used.
石拱桥因取材方便和耐久性强的优点而被广泛采用。
The Lugon Bridge known in the West as Marco Polo Bridge which spans the Dongding River to the Southwest of Beijing is the oldest stone arch bridge extant in Beijing.
卢沟桥位于北京西南的永定河上，是北京现存最古老的一座石拱桥。
Pennsylvania's nickname is the keystone State. Just as a keystone holds together a stone arch, Pennsylvania was seen as holding together the young American republic.
宾夕法尼亚州的别名是“拱心石之州”。就如拱心石支撑起石拱一样，人们认为宾夕法尼亚支撑起了年轻的美利坚共和国。
A bracket of stone, wood, brick, or other building material, projecting from the face of a wall and generally used to support a cornice or an arch.
托臂，翅托从墙面上凸出，常用于支撑檐口或拱形物的一种石、木、砖或其他建筑材料制成的建筑部件。
According to the analysis, a reversed arch made of stone and cement can control the continued deformation. The measured data showed that the control method was effective.
根据分析，采用了料石底拱加半圆拱砌碹的方式控制持续变形，实测数据证明，控制方式是有效的。
The central wedge-shaped stone of an arch that locks its parts together.
拱顶石，塞缝石拱的中部楔形石头，使拱的各个部分连在一起。
I shelter under the stone arch of the road bridge for half an hour's quiet reflection.
我躲在公路桥的石拱下静静思考了半个小时。
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。
In order to prevent seepage in stone masonry arch DAMS, the dam body is usually composed of different materials.
砌石拱坝为了防渗通常使坝体由不同材料组成，由于不同的材料具有不同的弹性模量，这类坝可称为成层异弹模拱坝。
Designed by a well-knownChinese mason, Li Chun, it's made of stone, 50.82 meters long and 10 meters wide, with anunusual arch that is 7.23 meters high with a span of 37.35 meters.
赵州桥是由中国著名的匠师李春设计的，是用石头建造的，长50.82米，宽10米，还有一个不可思议的弧形桥洞，高7.23米，跨度为37.35米。
Above the arch there was a long bas-relief carved in harder stone, with worn and blackened figures representing the four seasons.
门顶上面，有一长条硬石刻成的浮雕，代表四季的形象已经剥蚀，变黑。
For example, when the setting sun moves to the spot inside the stone arch of the altar, its rays spread across the ground and each rough spot on the ground is resplendent in the sunshine;
譬如祭坛石门中的落日，寂静的光辉平铺的一刻，地上的每一个坎坷都被映照得灿烂；
For example, when the setting sun moves to the spot inside the stone arch of the altar, its rays spread across the ground and each rough spot on the ground is resplendent in the sunshine;
譬如祭坛石门中的落日，寂静的光辉平铺的一刻，地上的每一个坎坷都被映照得灿烂；
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