The analysis of soil-leaf linear mixed spectra suggests that this method has the potential to effectively remove the soil background effect.

分析土壤叶片线性混合光谱表明：该方法能有效的消除土壤背景影响。

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FLATOW: But what about soothing, classical music in the background? I mean, I know you worked with the Mozart Effect. Tell us about that.

那些古典的、减缓疲劳的背景音乐呢？我是指，我知道你工作时的莫扎特效应，和我们聊聊这个。

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Sometimes it is because in the new population, the genetic background for their other genes masks the effect of gene a on depression.

有时，那是因为在新的人群中，人们其他的基因作用下的遗传背景掩盖了基因A对抑郁的效应。

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But if it is true then climate change stops being a looming diaster threatening all we hold dear and becomes instead just a minor background effect.

FORBES: Maybe Climate Change Just Really Isn't A Problem After All?

The aim is to freeze the runners, but at the same time blur the background with a streaky effect to show speed.

BBC: Picture power: Running for gold

When set at maximum aperture and widest angle of view the photographer can use fast shutter speeds in dimly lit locations and take advantage of a beautiful bokeh (out-of-focus) effect in the background.

ENGADGET: Pentax launches brass-bodied MX-1 point-and-shoot: 12MP with 4X zoom (update: now with hands-on photos)