He says they actually use dental floss to slowly saw away at the metal, adding tooth powder to increase the friction.
但是犯人们总能找到办法弄到。现在他们用牙线慢慢钜金属，抹上牙粉增加摩擦力。
Objective:The pear layer powder manufacturing technology with canine tooth instant exploding method was studied.
目的：研究犬齿瞬间爆裂法制备珍珠薄层粉的工艺。
Objective:To investigate the clinical effective of treatment for gingivitis by YADRAN herbal tooth powder.
目的：评价牙得安牌复方中草药牙粉对正畸患者牙周组织的影响。
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