Rollof罗洛夫
rolln.卷;滚动;名单;压路机;颤音;圆形物,面包卷v.摇摆;滚;绕;转动;展开
rolling rotors compressor滚动转子式压缩机
rolled foundation subsoil碾压基础地基
rolling of wheel and tyre火车车轮和轮箍轧制
roll film developing tank卷片显影箱
rolling piston compressor柱塞式压缩机
Rolling in Ferrite Region铁素体区轧制
rolling-ball viscometer滚球式粘度计
roll forging blanking die制坯辊锻模
roll from town to town.从一个城镇流浪到另一城镇