origin of lunar surface [天] 月表成因
surface crack origin 表面裂纹源
origin surface 原始表面
surface origin
表面的起源
以上为机器翻译结果，长、整句建议使用 人工翻译 。
These data will provide invaluable information about Antarctic atmospheric dynamics, of the origin of water vapour over the oceans and how it is ultimately deposited as snow on the surface of the ice sheet.
BBC: Viewpoint: The last great polar challenge
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