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| |||
| 未经证实〔检验〕的 | |||
| 未经证明的 | |||
| 未经公证的 | |||
| 未经证实的; 未经检验的 | |||
| 未被证明的 | |||
| unproved: 4 phrases in 2 subjects |
| Oil / petroleum | 3 |
| Technology | 1 |
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