The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter's outer atmosphere does contain sulfur.

这些碎片本身几乎不含硫，但天文学家相信，木星外层大气之下的云层中确实含有硫。

youdao

Altocumulus lacunosus. “An elusive prize for any cloud collector,” lacunosus clouds form when sinking pockets of air create holes in a cloud layer.

高积网状云。 “对于所有的观云爱好者来说，能欣赏到这种难以捉摸的云彩无异于恩赐，”当下沉的气团在云层中形成空洞时，网状云便出现了。

youdao

The bright yellow arcs that streak the marine cloud layer are ship tracks—clouds that form when water vapor condenses onto the myriad tiny pollution particles in ship exhaust.

划过海洋云层明亮的黄色弧线是船舶的航迹——那是些由水蒸汽与船舶排放出来的无数污染微粒凝结而成的云。

youdao

Amazon he says has done a very good job with the cloud layer.

FORBES: Connect

The uppermost parts of its thick cloud layer mysteriously absorb half of the ultraviolet light received by the planet.

ECONOMIST: Planetary science

The real carrot is the managed services and software on top of a Cloud platform and application layer.

FORBES: Rackspace: Bull and Bear Cases