In excavation of double span tunnel, there exists a big water-eroded groove. The method of elastic foundation beam is used to cope with the situation.

双跨隧道在岩溶地区施工中遇到大型溶槽，采用弹性地基梁法成功跨越。

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We stopped at London Bridge, a double-arched formation whose outer span collapsed in 1990, stranding a couple on the other side so that they had to be rescued by helicopter.

我们在伦敦桥停下车来，这是一座双拱桥梁，外延部分在1990年垮塌了。 当时有一对男女被困在桥那一边，只能由直升飞机前来救援。

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It is to be square-a span long and a span wide-and folded double.

这胸牌要四方的，叠为两层，长一虎口，宽一虎口。

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Washington lost 5-2 on the road against the Islanders on Saturday, a game in which Mike Ribeiro and Jeff Schultz each took double-minors in a span of less than four minutes in the third period, leading to two Islanders goals.

WSJ: Ovechkin penalties spur Rangers' 4-1 win over Caps

By contrast, the Knicks used successful pick and rolls to nearly double their entire first-half output during the 12-minute span, including a crowd-silencing three from 26 feet out by Felton that pulled the Knicks within three, 68-65, as the teams entered the fourth.

WSJ: 2013 NBA Playoffs: So Much for the Sweep as Boston Celtics Beat New York Knicks in Game 4