But as the well width increase, level filling is the main reason for the red-shift of spectrum, Auger recombination and carrier delocalization are the main reason for lower efficiency.

当阱宽较大时，能级填充是导致光谱红移的主要原因，俄歇复合与载流子离域是导致效率下降的主要原因。

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Mr.Stevens says a one hundred percent increase in fish farming over ten years is necessary to keep providing for people at the current level.

VOA: special.2011.02.08

For any given level of return, you can reduce the risk; for any given level of risk, you can increase the return; sounds pretty good.

给定回报率,可以降低风险,给定风险水平,可以提高回报率,听上去不错

耶鲁公开课 - 金融市场课程节选

And the answer is that-- yes it won't make a difference to our wellbeing but it also doesn't mean that we cannot increase our level of wellbeing.

答案是-,是的，它不会改变我们的幸福水平,但并不意味着,我们不能提升自己的幸福水平。

哈佛公开课 - 幸福课课程节选

We know the exact rate at which seawater expands with temperature, and the expected increase in sea level calculated from the observed increase in temperature matches the observed rate of increase of sea level.

FORBES: What If Mike Bloomberg Is Right And A Climate Change Nightmare Is Here?

"Each year we've had to steadily increase the level of security, " he said.

CNN: Police search for gang members in shooting

Putting your PowerPizza in a carrier bag will not only increase the level of disguise - it'll keep it dry too.

ENGADGET: Disguise your PowerBook as a PowerPizza