nacreous cloud造句

• Nacreous clouds ? also known as polar stratospheric clouds ? contribute to the formation of the polar ozone holes
  珍珠云，也称为极地平流云，会造南极臭氧空洞的形成。
• Nacreous clouds form when the fading light at sunset passes through tiny ice crystals blown along by a strong jet of stratospheric air
  珍珠云是由于日出时的太阳光穿过被一股强气流吹起的冰晶体时形成的。
• Renae baker , a scientist with the australian bureau of meteorology , snapped this picture of a rare nacreous cloud on july 25 at the country ' s antarctic mawson station
  雷纳?贝克是澳洲气象署的一位科学家。他在7 . 25日拍下了这张罕见的珍珠光泽的片。