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| degree of irregularity | |||
| 不 规则度: 14 phrases in 8 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Drilling | 1 |
| Education | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Oil / petroleum | 2 |
| Technology | 6 |
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