nacreous cloud

常见例句

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。
A cloud is a mass of vapor in the sky.
云是天空中的水汽团。
a magnificent display of nacreous clouds
蔚为壮观的一大片灿烂的云
A magnificent displayof nacreous clouds
蔚为壮观的一大片灿烂的云
A cloud is a condensation of water vapour.
云是由水蒸汽凝缩而成的。
There are several kinds of cloud formations.
云层的构成方式有好几种。