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 governorship went to a Democrat, Mrs Anne Richards...民主党人安妮·理查兹夫人当选为州长。He had worked closely with the President during his governorship.他在任州长期间与总统紧密合作。She looked on the governorship as a stepping - stone to the presi...
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...