只有高氯酸盐表现有显著的感度和可能具有起爆性能.Only the perchlorate shows marked sensitiveness and possibly initiating properties.目的〕研究建立测定烟火药剂中高氯酸盐含量的方法.A method for determination of perchlorates content in pyrotechnic compositions was establ...
Children at school receive coloured stars for work well done.学校里的孩子表现得好会得到彩色星星。Stars appeared everywhere, spinning round and round, faster and faster.满眼金星乱转，而且越转越快。The stars must have formed 10 to 15 billion years ago.这些...
The prospect of waiting around just twiddling his thumbs was appalling.想到将要无所事事，他就非常害怕。I'm just going to be hanging around twiddling my thumbs.我只会闲呆着，什么事也不做。She had sat there twiddling nervously with the clasp of he...
The perpetrators of this evil deed must be brought to justice.必须将参与这一恶行的凶手绳之以法。the perpetrators of the crime该项罪行的作恶者Until these measures are taken, the perpetrators will remain free and the killings will undoubtedly cont...
an ethos of public service公益服务的意识They were as far removed from the ethos of terrorism as you could imagine.他们丝毫不受恐怖主义思潮的影响,这你可以想像到的.The whole ethos of the hotel is effortless service.该酒店的全部理念就是提供轻松的服务。...