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词汇 the ionosphere
释义

the ionosphere

noun
/ði aɪˈɒnəsfɪə(r)/
/ði aɪˈɑːnəsfɪr/
[singular]
  1. a layer of the earth’s atmosphere between about 80 and 1 000 kilometres above the surface of the earth, that reflects radio waves around the earth电离层 compare stratosphereTopics Spacec2
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