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| химикат ph; химикат pH | |||
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控制剂 : 37 phrases in 9 subjects |
| Electronics | 9 |
| Environment | 2 |
| General | 14 |
| Medical | 1 |
| Military | 1 |
| Name of organization | 1 |
| Oil and gas | 1 |
| Rail transport | 2 |
| Technology | 6 |
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