nacreous cloud

常見例句

Nacreous clouds form when the fading light at sunset passes through tiny ice crystals blown along by a strong jet of stratospheric air.
珍珠雲(yún)是由於日出時(shí)的太陽光穿過被一股強(qiáng)氣流吹起的冰晶躰時(shí)形成的。
A cloud is a mass of vapor in the sky.
雲(yún)是天空中的水汽團(tuán)。
a magnificent display of nacreous clouds
蔚爲(wèi)壯觀的一大片燦爛的雲(yún)
A magnificent displayof nacreous clouds
蔚爲(wèi)壯觀的一大片燦爛的雲(yún)
A cloud is a condensation of water vapour.
雲(yún)是由水蒸汽凝縮而成的。
There are several kinds of cloud formations.
雲(yún)層的搆成方式有好幾種。