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| potassium perchlorate (KClO₄) | |||
| potassium hyperchlorate | |||
| potassium permanganate; potassium perchlorate | |||
| potassium perchlorate (固体推进剂氧化剂) | |||
| 高 氯酸钾: 2 phrases in 1 subject |
| Technology | 2 |
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