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| 压力波动变化 | |||
| 气压变化 | |||
| 压力变化 | |||
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pressure variation : 16 phrases in 7 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Electric machinery | 2 |
| General | 1 |
| Hydroelectric power stations | 3 |
| Refrigeration | 2 |
| Technology | 6 |
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