This is - what this diagram shows you is-- the forces that hold these individual strands of DNA into a double stranded form.

你们可以看看这个图表,演示了连接两条DNA长链为双螺旋,结构的化学力

耶鲁公开课 - 生物医学工程探索课程节选

That tells you something about the physical chemistry of the molecule; that it's these hydrogen bonds that hold the double strands and I can break those down under certain conditions.

我们从中可以知道一些,DNA分子的理化特点,双链是由氢键连接在一起,在一定条件下这些氢键可以断裂

耶鲁公开课 - 生物医学工程探索课程节选

But if you expect your investment to double, hold on and pay 23.8%.

FORBES: Taking Capital Gains In 2010 Might Be A Mistake

So is it fair to hold a double standard for Google and other search companies?

FORBES: More Evil Than Google?

He stepped down as part of Sinn Fein's commitment to end double-jobbing - where politicians hold more than one elected post.

BBC: Martin McGuinness