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- In this paper the preparation method of surperpurity europium oxide by zinc powder reduction extraction chromatography is expouned. 简述了采用锌粉还原萃取色层法制取超高纯氧化铕的工艺过程。
- This process not only avoided direct esterification of 2-aminobenzoic acid in low yield,but also eliminated the waste water caused by Na2S or Fe powder reduction. 该工艺不仅收率高于邻硝基苯甲酸还原酯化法,而且消除了采用硫化钠或铁粉还原产生的废水。
- The wastewater generated from 2,4-xylidine production by iron powder reduction process has been treated with a close recycle technology with steam stripping,realizing zerodischarge of the wastewater. 对铁粉还原法生产2,4-二甲基苯胺过程中产生的废水,采用蒸发为水蒸气后回用于汽提的全循环工艺,可实现零排放。
- Keywords xylidine;iron powder reduction;wastewater treatment.; 二甲基苯胺;铁粉还原;废水治理;
- Technical Measures to Raise the Powder Reduction Efficiency of the Cement Mill 提高水泥管磨机粉磨效率的技术措施
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- Actually they even have vanilla powder. 实际上还可以加香草粉。
- He takes a powder every morning. 他每天早晨吃一种粉状药。
- The reduction of unemployment should be paramount. 降低失业率应是头等大事。
- Borax is a kind of white powder. 硼砂是一种白色粉末。
- Shaking will settle the chalk powder down. 晃一晃把粉笔末抖落下来。
- Borax must be reduced to powder for infants. 硼砂必须研成细粉才能供婴儿使用。
- He crushed a piece of chalk to powder. 他将一支粉笔压成粉末。
- There's too much powder on your nose. 你鼻子上的粉擦得太多了。
- Excuse me, where is the powder room? 请问女厕所在哪里?
- Agitate the mixture to dissolve the powder. 搅动混合物而使粉末溶化。
- The forthcoming talk hold out the hope of real arms reduction. 即将举行的会谈给实现真正的裁军带来了希望。
- Dusted talcum powder on my feet. 在我的脚上撒爽身粉
- Queue forme at the ticket office when the news of the fare reduction get out. 票价下调的消息一传出,售票处前就排起了队。
- A reduction in pace, force, or intensity; a slowdown. 减慢,放松速度、力量或强度减弱; 放慢