That the word " Mafia " had originally meant place of refuge.他还摸清了 “ 黑帮”这个词在意大利语里原来的含义是 “ 避难所”.The deadly Sicilian shotgun was the favorite weapon of the Mafia.这种杀伤力很大的西西里土制滑膛枪,是黑帮喜爱的武器.And the Mafia cemented its power b...
Many jets have an afterburner.许多喷气机都有加力燃烧室.Fig . 16 - 6 illustrates a typical afterburner fuel control system.图16-6示出了一种典型的加力燃烧室燃油控制系统.Afterburner system is runing very smoothly.后燃加力系统运行平缓....