To improve the IR absorption of hydrotalcite, we intercalate SO 42 - to partly replace CO 32 - of interlayer.对水滑石红外吸收机理的研究表明,水滑石的层间阴离子起主要作用, 层板具有协同效应.为提高水滑石的红外吸收选择性,通过对不同阴离子的分析和筛选,确定在水滑石层间插入硫酸根.Veiws evidently intercalat...
The cercospora leaf spot is one of the main diseases infecting sugarbeet.褐斑病是甜菜的主要病害之一,危害性很大.The results show that the Heihe region Cercospora Race greater the number and frequency changes.结果表明黑河地区灰斑病生理小种数目和频率有较大变化....
Pug rubbed a hand over his grimy stubby face.帕格伸手摸了摸他那肮脏的、胡子拉茬的脸.Pug's short assured answers were instinctive returns of the hard straight quizzing.帕格用那几句简短而有把握的话不加思索地答复了对方单刀直入的追询.Burne - Wilke's good claret an...