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Terms for subject Mechanic engineering containing material | all forms | exact matches only
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belt material带衬
For safety reasons, vises and clamps securely hold the work piece as the hole is bored in order to prevent material from shifting unexpectedly为了安全,在钻孔的同时,台虎钳和夹钳牢牢地固定住工件,防止材料不小心移位