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跟踪; 摆动; 范围; 地面轨迹 | |||
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迹 | |||
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划定 | |||
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绘图; 标图 |
trace : 30 phrases in 12 subjects |
Acoustics | 3 |
Agriculture | 1 |
Electronics | 1 |
Environment | 2 |
Fishery fishing industry | 2 |
Forestry | 1 |
Hydrology | 1 |
Mathematics | 2 |
Nuclear physics | 1 |
Remote sensing | 3 |
Statistics | 6 |
United Nations | 7 |