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Nacreous clouds , observed on january 6 , 2011 .

图为珠母云，拍摄于2011年1月6日。

The nacreous glow that filled the heavens .

布满天空的虹彩光芒。

As the defense mechanism , the oyster production is called the nacreous layer one material result form nearby the intruder the lamination stack , the creation pearl .

由于防御机制，牡蛎生产所谓的珍珠层的结果形成一个物质的侵入附近的复合叠加，建立珍珠。

9 Nacreous clouds , or " mother of pearl " clouds , appear iridescent because of their ultrafine ice crystals , which form 10 to 15 miles up in the stratosphere .

9珠母云，或称“珍珠之母”云，之所以会呈现彩虹色彩，有赖于在离地10到15英里的平流层中它们的超细冰晶发挥了作用。

10 Unfortunately , nacreous clouds also support chemical reactions that convert benign chlorine-containing molecules into a form that destroys earth 's ozone layer .

10不幸的是珠母云也有助于危害性化学反应的发生，它会将良性的含氯分子转化成地球臭氧层杀手。