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| 热电离层80千米以上的电离层 | |||
| 热层 (thermosphera) | |||
| 热成层 | |||
| 热大气层; 热电离层; 温度圈; 温水层 | |||
| 热层 (地球大气层的) | |||
| 热成层 | |||
| 热层; 电离层 | |||
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thermosphere : 6 phrases in 2 subjects |
| Aviation | 2 |
| Space | 4 |
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