枸橼酸哌嗪治疗蛔虫感染是最好的药物.Piperazine citrate is the drug of choice in the treatment of Ascaris infestations.目的改进盐酸环丙沙星制备中的哌嗪缩合反应.Objective To improve Piperazine condensation reaction in the preparation of Ciprofloxacin hydrochlo...
我搭便车旅行的时候搭乘过一九二八年型的老爷车 、 冒烟的公共汽车以及嘎嘎作响的运牛奶火车.I have hitchhiked in 1928 - model jalopies, ridden in fuming buses and rettling milk trains.他们决定,务必把文件从还在冒烟的大楼中抢救出来.They decided that it was essential to retrieve the papers f...