Graver: V - shaped steel cutting tool used by engravers . Also called burin.雕刻刀: 雕刻铜版用的槽形钢刀.The eighteenth century was the golden age of the English engravers.18世纪是英国雕刻家的黄金时代....
Overpopulation is not compatible with freedom.人口过剩和自由是不可调和的.The Irish would not allow overpopulation to occur again.爱尔兰人不允许再发生人口过剩....young persons who are concerned about overpopulation in the world.担心世界人口过剩的年轻人Who know...
See if you can nail the chairman down to an exact date.看你能不能迫使主席把准确日期定下来。The main events were as follows: first,the president’s speech,secondly,the secretary’s report and thirdly,the chairman’s summing-up.主要活动如下:第一项,总裁讲话...
装在起重机上的一块大电磁铁提起破碎机.A large electric magnet on a crane lifts the skull craper.干净的煤送入破碎机和锅炉.The clean coal is sent to a crusher and the boilers.应用手摇破碎机获得的商品核桃仁仅为17%.Recovery of marketable kernels with a hand cracking machi...