an inclined metal frame at the front of a locomotive to clear the track
同义词：fender, buffer, pilot
cowcatcher详细解释
cow.catch.er n.（名词）The metal grille or frame projecting from the front of a locomotive and serving to clear the track of obstructions.排障装置：一种装在火车前部用于清除铁轨上的障碍的金属格栅或框架
