设计合成了用以检测过渡金属离子的荧光化学敏感器体系,它们是由1,8-萘二酰亚胺为荧光团,多胺衍生物为金属离子受体组成.A series of fluorescent chemosensors 1 - 3 were synthesized to detect transition metal ions....
It seems a false economy to me to cut down on libraries.在我看来，减少图书馆的数量并不是真正的节约。I turned to bookshops and libraries seeking information and found none.我去了书店和图书馆查找资料，但什么也没找到。It is difficult for a lay person to gain access t...
He was an easygoing man of very moderate views.他的观点非常温和，容易相处。He drifted into one of those easygoing relationships with John. Kenmy.他和约翰、肯尼建立了很随便的关系.My mother doesn't mind who comes to stay, she's very easygoing...