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zinc tannin
| process
| zinc-tannin | |
| tech. | 锌化单宁酸 |
| process | |
| gen. | 过 程; 工 序; 工艺 |
| archit. | 流程; 工艺规程 |
| hydroel.st. | 过程; 进程; 步骤; 程序 |
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| 锌化单宁酸 | |||
| zinc tannin: 1 phrase in 1 subject |
| Agriculture | 1 |
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