He collected an old engraving of London Bridge.他收藏了一张古老的伦敦桥版画。Some writing has the precision of a steel engraving.有的字体严谨如同钢刻.The engraving was rolling up in a sheet of tissue paper.版画裹在一张薄纸里....
an old engraving of London Bridge古老的伦敦桥版画The process of preparing a printing surface electrotyping by first engraving on a wax - coated metal plate.'蜡'.''模,''.'蜡'.''刻制版&#...