Glycidyl ether group-contg. partial alkoxysilane condensate, silane-modified resin, compsns. of these, and processes for producing these.
含有缩水甘油醚基团的烷氧基硅烷的部分缩合物，硅烷改性树脂，它们的组合物和制备它们的方法。
The solubility parameter of phenolphthalein poly (ether sulfone) (PES-C) was determinated by using turbidity titration method, and estimated by using group contribution method.
采用浊度滴定法测定和基团贡献法估算了酚酞基聚醚砜的溶解度参数。
Excellent selectivity was obtained for the separations of polar position isomers. The benzamide substituent group on crown ether makes the stationa…
由于冠醚上引入苯甲酰胺取代基，因而对苯胺类及不经衍生化的碱性化合物能特殊选择性地分离。
As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
The results showed as follows:compared with the control group, diets added 4% to 20% cassava meal had no significant effect on apparent digestibility of ether extract and calcium of tilapia (P>0.05);
结果表明：与对照组相比，饲料中添加4%~20%木薯粉对罗非鱼粗脂肪和钙的表观消化率均无显著影响（P>0.05）；
The results showed as follows:compared with the control group, diets added 4% to 20% cassava meal had no significant effect on apparent digestibility of ether extract and calcium of tilapia (P>0.05);
结果表明：与对照组相比，饲料中添加4%~20%木薯粉对罗非鱼粗脂肪和钙的表观消化率均无显著影响（P>0.05）；
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