The methods for calcium and magnesium ionic content analysis was set up and it was described in detail. It was proved to be simple, fast and accurate, which can meet the needs of production.
建立了盐水中钙、镁离子的分析方法并进行详细描述，利用该方法对不同取样点的盐水进行测定，证明该检测方法简便、快速、准确，能够满足生产需要。
Moreover, higher water content in the ionic liquid was favorable for obtaining higher enantioselectivity, however it lowered the reaction rate and(DL)-menthol conversion.
另外，在离子液体中，水含量的增加在一定程度上可以增大酯化手性选择性，但反应速率会被降低。
It is of great significance to the study of ionic contamination that the electrical conductivity of pore fluid in saturated sandy soil reflects the ion content.
饱和砂性土的孔隙水电导率直接反映了孔隙水中离子的含量，对研究土体离子污染有重要意义。
The effects of PVA content on membrane preparation, water uptake, swelling degree, IEC, thermal stability, ionic conductivity and mechanical strength were all investigated.
考察了PVA含量对共混膜成膜性、吸水率、溶胀度、离子交换容量、热稳定性、离子传导率及力学性能的影响。
In this paper, the definition, structure, content, origin and property of ionic liquid are introduced. In addition, the questions lying in liquid-liquid extraction are briefly discussed.
介绍了离子液体的定义、组成、产生及特点，阐述了离子液体应用于液-液萃取中所存在的问题。
The results showed that increase hard segment content, soft segment sequence length and ionic group to be favourable for rising tensile strength.
研究表明：硬链段含量、软链段链长的提高和离子基团的增加均有利于拉伸强度的提高。
Two methods that can decrease sulfur content using ionic liquids have been studied in this thesis, including direct extraction and oxidation extraction.
本文研究的离子液体脱硫方法有两种：直接萃取法和氧化-萃取法。
Two methods that can decrease sulfur content using ionic liquids have been studied in this thesis, including direct extraction and oxidation extraction.
本文研究的离子液体脱硫方法有两种：直接萃取法和氧化-萃取法。
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