The heptanal butyl mercaptan was synthesized with heptanal, sodium thiosulfate and 1 bromobutane as raw materials.以正庚醛 、 硫代硫酸钠和溴代正丁烷为原料,合成了正庚醛正丁硫醇缩醛....
快到9点半的时候，他在一名警察的护送下到达了。He arrived with a police escort shortly before half past nine.他只有5英尺9英寸高，刚刚达到当警察的最低身高要求。He was only five feet nine, the minimum height for a policeman.这项罪行是在警察的纵容下发生的。The crime was committed with t...