He conceived the first proof that the 17-sided polygon is constructible.

他构思了17边形可以作图的第一个证明。

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He conceived the first proof that the 17 - sided polygon is constructible.

他构思了17边形可以作图的第一个证明。

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Since the JRuby project is already in a 1.0 release, we are doing our first proof-of-concept on that platform.

由于JRuby项目已经发布了1.0版本，因此我们正在这个平台上进行第一次想法证实的尝试。

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"These findings provide the first proof in man that aspirin prevents distant cancer metastasis, " the second study's authors concluded.

WSJ: Studies Find New Evidence Aspirin May Prevent Cancer

Or, before getting all excited about electric cars, show me workable electric motorcycles first as proof-of-concept.

FORBES: How to Swap the Obama Budget for an Optimistic Economic Growth Agenda

And although we've known that for years, this is the first big scientific proof of that relationship.

CNN: Simple test may determine smokers' lung cancer risk