Since the discovery of bronze masks in the 1970s, archeologists have located 100 sites that belonged to the Ba people, each considered a historical archive.

自从20世纪70年代发现铜面具以后，考古学家确定了100处巴族人的遗迹，每个遗迹都是一座历史档案馆。

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Since this discovery, researchers also found that the moon has an abundance of water.

自从这个发现以来，研究者们也发现月球上有大量的水源。

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One unexpected discovery made during the decade since the genome project was finished is that there are thousands of small genes whose RNA copies are not translated into proteins.

自从基因计划完成后的十年中, 一个未预料的发现是上千的小基因的RNA副本没有转译成蛋白质.

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Since that discovery, UK intelligence agency GCHQ has been unsuccessfully attempted to decipher it.

ENGADGET: Alt-week 12.22.12: strange skulls, solar portraits and 17-minute code cracking

But ever since that discovery, and ever since a massive share offering diluted shareholder value in 2009, this prime Brazilian investment has been nothing but a dud.

FORBES: A Break For Brazil's Petrobras?

In 1981, the Centers for Disease Control and Prevention (CDC) reported the first cases of AIDS. Since that initial discovery, the U.S. government has led a global response based on scientific research sponsored by the National Institutes of Health (NIH) and other U.S. government agencies.

WHITEHOUSE: Fact Sheet: The Global AIDS Epidemic