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 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...
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...