The producing technology ofp - dichlorobenzene especially the catalysts are described in this thesis.本文介绍了国内外对二 氯苯 生产技术特别是催化剂方面的最新进展.The p dichlorobenzene and naphthalene in mothproofing agent was determined by infrared ...
The basin favours the development of farming and animal husbandry.这个盆地有利于农业和畜牧业的发展.The water was even with the rim of the basin.盆里的水与盆边平齐了.She tipped the flour into the basin.她把面粉倒进盆里....