sharpening
【运输】由喷磨方式削尖锉刀或粗锉
SHARPENING of files or rasps by abrasive blasting
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相关词条
SHARPENING of styli, otherwise than by grinding
SHARPENING
Sharpening
knife-sharpening device
round edge slip sharpening stone
spiral bevel milling cutter head sharpening machine
hand tool for grinding, buffing, sharpening