out-span angle method 档外角度法
mined-out area span 采空区跨度
Recently,the television cable network C-Span carried out its second study about the greatest American presidents.
VOA: special.2009.02.27
The rocket span out of control and had to be ordered to blow itself up.
ECONOMIST: Hypersonic aviation
The report stated that the inspection follows the launch of Operation Span, carried out by Greater Manchester Police from 2010.
BBC: Manchester
But he got some help when Buck made a tough, backhand pickup of a breaking ball in the dirt and threw out Span trying to scamper to second.
WSJ: Werth overanxious as Nationals lose to Mets 2-0
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