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关注：1
2013-05-23 12:21
求翻译：世界对磷石膏生产硫酸钾和硫基复合肥的研究很多。目前石膏转化法制硫酸钾主要有一步法和两步法两种工艺。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
世界对磷石膏生产硫酸钾和硫基复合肥的研究很多。目前石膏转化法制硫酸钾主要有一步法和两步法两种工艺。
问题补充： |
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2013-05-23 12:21:38
Many world phosphogypsum production of potassium sulfate compound fertilizer. Preparing Potassium Sulfate Gypsum Conversion one-step and two-step method two processes.
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2013-05-23 12:23:18
World production of phosphate gypsum sulphate and sulfur-based compound is a lot of research. The gypsum into sulphate rule is a major step and two-step process of the law.
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2013-05-23 12:24:58
The world are very many to the phosphorus gypsum production potassium sulfate and the sulfenyl duplicate Hefei's research.At present the gypsum transformation legal system potassium sulfate mainly has the one-stage process and two step two crafts.
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2013-05-23 12:26:38
World production of potassium sulfate from phosphogypsum and sulfur-based compound fertilizer of a lot. Currently gypsum conversion method of potassium are mainly two processes for one-step and two-step.
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2013-05-23 12:28:18
正在翻译，请等待...
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