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| total quantity control | |||
| total quantity control of pollutant discharge | |||
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| volume cap | |||
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总量控制 : 21 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| China | 1 |
| Earth sciences | 3 |
| Ecology | 3 |
| Electronics | 1 |
| Refrigeration | 1 |
| Technology | 10 |
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