Rock P-wave velocity as a key mark of rock quality can reflect the state of rock body quality in the dam site area.

岩体波速作为反应岩体质量的重要指标，可以反应坝址区岩体质量状况。

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We will include this Key as an attribute of AcmeMembership, mark it as a Primary Key, and specify the strategy the Google App Engine runtime will use to populate it automatically with unique values.

我们将会将该Key作为AcmeMembership的属性添加，并将其标记为一个主键，并指定Google App Engine运行时的策略，它将会自动填充上唯一的值。

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Because Ray, Daria, and Allen are the three key participants for the meeting, Mark searches for free times only among Ray, Daria, Allen, and himself.

因为Ray、Daria和Allen是会议的三个关键参与者，所以Mark要搜索Ray、Daria、Allen和他自己的空闲时间。

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Saying the difference between a sharp recession and a depression is a loss of faith, economist Mark Zandi said a restoration of confidence will be key to recovery.

VOA: standard.2009.03.10

Borrowing costs in Spain rose above 7%, a key psychological mark.

FORBES: Move up http://i.forbesimg.com t Move down

The 2011 car has been overseen by new technical director Andrew Green after his predecessors James Key and Mark Smith both left for rival teams within the last year.

BBC: Force India take wraps off F1 car for 2011 season

Kent had set about their task with haste thanks to Denly and Key, passing the 50 mark with Key's four in the sixth over.

BBC: Quick-fire Denly seals Kent win