短语词组短語tread -wear life 胎麪磨損壽命TWI tread wear indicator 輪胎花紋胎麪磨損指示器tread wear life 磨耗性能tread wear per mile 每英裡tread wear indicato 胎麪磨耗標志tread wear grade 胎麪磨損級long tread wear 胎麪經久耐磨tread wear testing 胎麪磨耗試騐 返回 tread wear