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实验室试验实验室实验 : 55 phrases in 12 subjects |
| Astronautics | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Ecology | 2 |
| Education | 3 |
| Electronics | 7 |
| Environment | 3 |
| General | 22 |
| Gold mining | 1 |
| Military | 3 |
| Name of organization | 1 |
| Technology | 10 |
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