短语词组短语WOR Wear Out Rate 磨损率wear loss rate 磨损率Limiting wear tensibility rate 极限磨损伸长率magic wear rate 最佳磨耗率equipment wear rate 设备磨损率Electrode wear rate 电极消耗率corrosion wear rate 腐蚀磨损速率K wear rate 磨损率erosive wear rate 冲蚀率 返回 wear rate