The arch was used by the early cultures of the Mediterranean area chiefly for underground drains, but it was the Romans who first developed and used the arch extensively in aboveground structures.

在地中海区域的早期文明中，拱形结构主要被运用在地下排水管上，但在地上建筑中首先发展并广泛使用拱门的是罗马人。

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The 3D velocity fields in the furnaces' arch area for a conventional stock boiler were measured by the hot wire aerometer.

通过热线式气压计测量了常规储备锅炉的炉拱区域中的 3D 速度场。

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The huts line a central area in which an imposing wooden ceremonial arch marks the place where animal sacrifices are carried out.

小屋沿中心区域排列，中心区域中有一用于举行仪式的巨大木制拱门，标志着这里是进行动物祭祀的地方。

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Later a transport system was added to permit people to visit an observation area inside the top of the arch.

VOA: special.2009.03.04

The area from Admiralty Arch to the Queen Victoria Memorial will be ticketed and reserved.

BBC: Team GB fans

Mr. Justiss also built in a water bowl for the Fiacco's dogs and an arch-shaped doggy door leading from the outdoor shower area.

WSJ: Full Enclosure - WSJ Mansion

The closed British Columbia port is known as the Douglas or Peace Arch crossing, and Canadian authorities are asking motorists to use another area crossing, said Faith St.

CNN: STORY HIGHLIGHTS