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...
She looked doubtfully at him, at the low shanty.她犹豫不定地看着他, 看着那间矮棚屋.His eyes rested on her doubtfully.他可疑地注视她.We eyed each other amicably if doubtfully.我们彼此用一种怀疑的,但却友好的眼光看待对方.She doubtfully led him the way to the hallroom...
What women mistake as thoughtlessness is often just diffidence.女性误以为是考虑不周的事情往往只是缺乏自信。He entered the room with a certain diffidence.他怯生生地走进房间。He failed through diffidence.他因缺乏自信而失败....