1·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。
2·The sun raised gradually in cloud layer.
太阳在云层里渐渐升高。
网络释义
云层
机场运行,空管,签派常用英语词汇和短语_百度文库 ... To clear up 消散 (云) Cloud layer云层 Fog 雾 ...