plastic cutter
勾刀 hook knife
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长勾刀 Guisarme
彩绘勾刀漆器 hook-out carved lacquer article
勾灰刀 tuck-pointer trowel
勾缝刀 pointing trowel
勾恨刀 OverlordRemorseDart
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主要结果和结论：设计制造出速滑刀金属研磨平板、勾刃冰刀金属研磨棒。
Metal grinding flatbed for speed skate blade and metal grinding rod for figure skate blade were designed and developed.
youdao
勾刀 gōu dāo ㄍㄡ ㄉㄠ
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