Arriving from ~*Outer Space~1

• 作者: C.B.E. D.sc. F.r.s. SirGrahamSutton 张怀森
• 来源期刊: 语言教育
• 学科: 文学
• 关键词: DISTANT PLANET visiting UNTIL orbit TENSE getting weather SPEND 星际空间
• 年，卷（期）: 1998,（11）
• 页码范围: 42-43
• 页数: 2页
• 分类号: H319.4

摘要

<正> Suppose that we were space travellers,visiting the earthfrom some distant planet. It would be difficult to detects muchtrace of the atmosphere until we were in the region of the low-er part of the orbit of the first sputnik,say between 200 and