1. 磨料：zoom out 缩小 | abradant 磨料 | abrader 磨损试验机
2. 研磨剂：above-the-knee boots 过膝高统靴 | abradant 研磨剂 | abraded filament yarn 擦毛长丝纱
3. 摩擦着的：abracadabra 胡言乱语 | abradant 摩擦着的 | abrade 磨损
4. 摩擦剂：abnormal steel 异常钢 | abradant 摩擦剂 | Abram's law 亚伯姆定律
noun
1. a tool or machine used for wearing down or smoothing or polishing
Synonym: abrader
2. a substance that abrades or wears down
Synonym: abrasive abrasive material