Puffer fish of the upper and lower teeth are connected together, as if a sharp blade .
河豚的上下颌的牙齿都是连接在一起的，好像一块锋利的刀片。
Daily before meals to relax the body, lips close, then the upper and lower teeth have quietly tapping rhythm.
每日三餐前坚持全身放松，口唇轻闭，然后上下齿有节律地悄悄叩击。
Teeth of good size. Jaws strong with a perfect, regular and complete scissor bite, i. e. upper teeth closely overlapping lower teeth and set square to the jaws.
牙齿形状好，强壮的颌，完美的规则的剪刀状咬合，比如上齿紧紧覆盖下齿在口中构成三角形。
Jaws and teeth strong with a perfect, regular and complete scissor bite, i. e. upper teeth closely overlapping lower teeth and set square to the jaws.
拉不拉多犬的下巴与牙齿有完美的结合，以交剪的方式完全咬合，及上面的牙齿与下面的牙齿紧密的重叠。
The reason for these may be the occlusal relationships of upper and lower molars, dental physiological function of the teeth, and the difference in economic subsistance between the groups.
磨耗速率的组内、组间差异与上下颌牙齿咬合关系、口腔咀嚼生理以及不同经济文化古人群的食物构成等差异有关。
Simply speaking there are normally 20 teeth in the upper jaw and 22 in the lower jaw.
简单来说，通常上颚部分有20颗牙齿，下颚部分有22颗牙齿。
Misalignment of teeth between the upper and lower jaws can grind down the teeth and cause problems in chewing. Elsewhere, it is a cosmetic problem.
下颚间的牙齿咬合不正会磨损牙齿并造成咀嚼问题，此外，也会造成外表美观的问题。
Occlusion plane was defined as conference plane, the buccal or lingual inclination of posterior teeth in upper and lower arch was measured.
同时以平面作为参考平面，测量上下颌后牙颊舌向倾斜程度。
The sound is created by the tongue working with the upper teeth to force air over the surface of the tongue and into the lower teeth.
通过舌面与上齿共同作用强迫气流略过舌面，气流在进入下齿后面时发出声音。
The diamond drilling teeth covered with antiwear alloy are welded to the lower end of drilling body and a triangular drilling shank is welded to the upper end.
该钻头是在钻体的下端焊接着有一定耐磨性合金包镶金刚石的钻齿，上端焊接着钻柄。
Three pairs of incisors, one pair of elongated canines, three pairs of molars, four pairs of premolars, upper and lower, for a total of 44 teeth.
有三对门牙、一对延长犬齿、三对臼齿、四对前臼齿，上下加起来，一共。
Three pairs of incisors, one pair of elongated canines, three pairs of molars, four pairs of premolars, upper and lower, for a total of 44 teeth.
有三对门牙、一对延长犬齿、三对臼齿、四对前臼齿，上下加起来，一共。
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