棱沟漏斗 fluted funnel
扁平、槽沟及倒棱刀 Flattening ,Grooving and Chamfering
沟棱南蜥 loppie skink
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方法三棱滑切固定矫治器的结构，以三棱形弓丝和具有三角槽沟的托槽为主体，由它控制矫治牙在各个方向的移动而发挥矫治作用。
Methods the structure of deltoid arch wire fixed appliance is consist of deltoid arch wire and bracket with deltoid colpus. It is used to control the tooth's moving.
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