For most old arch Bridges lack of original design and construction data, it is difficult to assess their bearing capacities accurately.

对于大多缺乏原始设计和施工资料的旧拱桥，很难对其承载能力作出准确的评定。

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The effect method of reinforce and maintenance the stone arch bridge is to build liner around the arch bridge down area. That combines the old arch round and the new reinforced concrete together.

在石拱桥拱圈的下部进行衬砌加固，使老石拱桥拱圈与新钢筋混凝土套拱形成整体，共同受力，是一种维修加固石拱桥的简单实用的方法。

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The 34-year-old Spaniard won the 9,500 kilometre event in 2006 and 2009, and faces stiff competition in 2011 from arch-rival and reigning champion Cyril Despres of France.

西班牙人马克·柯马今年34岁，曾为2006、2009年9500公里比赛冠军得主。 2011年，他的主要劲敌是来自法国的卫冕冠军西瑞尔·代斯普利司，这将给他的夺冠带来巨大挑战。

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..I have kept hidden in the instep arch Of an old cedar at the waterside A broken drinking goblet like the Grail Under a spell so the wrong ones can't find it, So can't get saved as Saint Mark says they mustn't.

我还保存着一只坏了的高脚酒杯,埋在水边的一棵老树底下,像受了符咒的圣杯,使坏人找不到，如圣马可所说：他们因此不能得救。

耶鲁公开课 - 现代诗歌课程节选

There is a length of one side of a 200-year-old arch turned black and porous with pollution.

BBC: The spirit of the Italian Lakes

In it the Martians really are little green men who quack like ducks and sport craniums that are a cross between a skull and the Mekon of Mekonta arch-villain of the old Dan Dare comic strip.

ECONOMIST: ET’s going home | The

The Newport Arch formed part of the centuries old city walls in Lincoln and is being damaged by the hard winters.

BBC: Lincoln's Newport Arch suffers winter damage