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 ...
抗腐蚀、耐老化 、 操作简便, 性能稳定, 安全可靠,使用寿命长.Corrosion and aging resistance, simple - operating, stable function, safety and long durability.这类合金还显示出优良的抗腐蚀性能.These alloys also exhibit a good resistance to corrosion.该涂料具有优异的隔热效果 、 保温...
The curriculum was challenging, and the professors were all lifers in the journalism field.我们所学课程都是具有挑战性的.教授们全是新闻领域里干了一辈子的职业工作者.Women professors are displacing men at the university. Most the new professors are women.女教授...