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| 视听众分析 | |||
| 剖面图分析 | |||
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| 提问课题分析 | |||
| profile analysis: 8 phrases in 5 subjects |
| Earth sciences | 1 |
| Electronics | 3 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
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