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| 钴土矿; 土状钻矿; 锰钻的水合氧化物; 钻锰氧化物矿石; 珠明料釉下青花料 | |||
| 钴土矿锰钴的水合氧化物 (CoMn2O5•4H2O) | |||
| asbolan: 2 phrases in 1 subject |
| Metallurgy | 2 |
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