贝贝哈拉
苯胺盐酸盐,苯胺硫酸盐与高硫酸铵属于分析精度极高的合成物并且视之为标准性物质。苯胺与樟脑磺酸放入水中,蒸发反应后得到苯胺与樟脑磺酸的一种盐。在一项生成聚苯胺的典型固态反应中,容量为50毫升的不锈研磨钢杯中盛放苯胺盐和高硫酸铵的混合物。把苯胺盐与高硫酸铵的研磨比例按照0.25:1到10:1的范围进行。(未完明天继续)
追梦小顽童
purification常见释义
英[ˌpjʊərɪfɪˈkeɪʃn]美[ˌpjʊərɪfɪˈkeɪʃn]词典:purification; refinement
例句:The other issue concerns the purification of finalproducts.另一个问题是最终产品的提纯。
refinerefinement
purificationpurifyrefinerefinement词组 | 习惯用语提纯 purification; refinement
Purifying oxygen and raising steam, however, both consume energy.
提纯 氧气提升蒸汽都要消耗能量。
The rest is purified and turned into milk or yogurt.
剩下的被 提纯 ,制成牛奶或酸奶。
We also refine naturally occurring radioactive ores to fuel nuclear po
Mostof the plants now refine, not extract, oil.大多数的工厂只能石油,而不能提取石油。
蛋塔阿姨
purification
n.提纯;净化
purify
v.提纯
例句:
1、Extraction, separation and purification techniques of tea polysaccharides were introduced. And its development trend of purification technique was forecasted.介绍了茶多糖提取、分离和纯化技术,并展望了其提纯技术的发展方向。
2、One of the most advantageous and widely used method is the tandem affinity purification.串联亲和纯化是目前应用最广泛、最具优势的方法之一。
refinement
n.提纯;精制
1、Phase III, from March 1991 to March 1993, focused on the refinement and institutionalization of these activities.从1991年3月到1993年3月,第三阶段的重点是对这些活动做精细的改进并且使其制度化。
2、The new plan is a refinement of the one before.新计划比原计划有改进。
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