丙酮溶解聚苯乙烯的现象是什么？ http：//www.bondch.com/lunwen/yuanqing/12.htm废聚苯乙烯泡沫塑料再生胶粘剂的研究 鲍春阳(黑龙江省石油化学研究院，。全世界胶粘剂的总产量在七十年代中期已接近500万吨，。
河北辛集化工集团有限责任公司怎么样？ 简介：河北辛集化工集团有限责任公司原名河北辛集化工厂，1947年创建，国家大型企业，中国化工500强企业，河北省明星企业，石家庄市工业50强企业，我国主要的无机盐生产和出口基地。法定代表人：阎振宗成立时间：1996-07-16注册资本：6191.9万人民币工商注册号：150425000008479企业类型：其他有限责任公司公司地址：辛集市新城清洁化工园、天山大道西侧
大家帮忙翻译一下！急用！！谢谢！！ Synthetic compounds have trimethoprim category to improve processes，solid sulphur thiourea，urea，hydrochloric acid guanidine into ethanol sodium solution，heated to make it dissolved，and then Dijia clean Yisuanyizhi by Central compounds containing trimethoprim.Savings of raw materials，increased production rates；Traube condensation reaction was further through a series of Piaoling compounds，some of which have anti-virus，anti-tumor effect.After numerous experiments found room temperature 2，4，5-three amino-6-hydroxy trimethoprim with Shuiyang aldehyde，formaldehyde neighbors chlorobenzene，Chenopodium album Lo aldehyde reaction，2-hydrosulfuryl base-6-hydroxy-4，5-two amino trimethoprim with Shuiyang aldehyde reaction synthetic four seats husband alkali，according to responses from the end of the structure，nature and conditions of reaction testing infrared spectral results projections generated compounds may structure.
