Aim To find the cause of abnormal NMR spectra of lomerizine dihydrochloridedihydrochloride and fenfluramine camphoramide.目的寻找盐酸洛美利嗪等含氮化合物呈现特殊核磁图谱的内在原因....
围栏倒下时发出了断裂的声音。There was a splintering sound as the railing gave way.然后，他便仰天倒下了。He then keeled over and fell flat on his back.他看上去几乎是以慢动作倒下的。It seemed almost as if he were falling in slow motion....