Cloud iridescence and coronas are both caused by diffraction processes .

云层的彩虹色和日华都是由阳光的衍射所产生的。

By all accounts , pattinson was in especially happy mood , puffing on an electronic cigarette and drinking coronas .

从各方面来看，帕丁森心情都特别愉快，吸着电子烟喝着“电晕”啤酒。