One simple and (at least, in the movies) popular test to determine whether a diamond is real is to run it across a piece of glass.

确定钻石是真是假的一个简单而（至少在电影里）流行的测试是让它在一片玻璃上滚。

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Run in a diamond core bit.

下金刚石取芯钻头。

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In the past 10 years, Diamond electron has always been assisting domestic and international clients in reliable, efficient and economic means to run their electronic products.

得门电子在过去的十几年当中，得门电子一直在协助国内外客户以可靠、高效和经济的手段来运行他们的电子产品。

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He drew a vertiginously plunging double-diamond run representing the dissolution of mass TV audiences as cable channels began to proliferate.

NEWYORKER: Streaming Dreams

No more than skiing a Black Diamond run.

FORBES: The Next King of Volkswagen. Maybe.

"The idea is to have both run seven Diamond League meets, possibly even eight with a couple of a match-ups between the two throughout the year, " Wetmore addded.

BBC: Gay set to be fit for new season