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abradant    
a. 摩擦着的
n. 磨蚀剂

摩擦着的磨蚀剂

abradant
n 1: a substance that abrades or wears down [synonym: {abrasive},
{abradant}, {abrasive material}]
2: a tool or machine used for wearing down or smoothing or
polishing [synonym: {abrader}, {abradant}]

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