R.A.F 基本例句 abbr.英国皇家空军Royal Air Force Although Germany had produced a jet fighter it was Frank Whittle of the R.A.F. who had invented the jet engine and patented it as early as1930. 虽然德国已经制造了喷气式飞机，但是 R.A.F的弗兰克.卫通 Frank Whittle发明的喷气式发动机并早在1930年就申请了专利。 yeeyan