查询词典 front teeth

The characteristic of teeth meshing and,further,circumferential load distribution of non-conjugate crown gear coupling are analyzed,by which an effective method is given for analyzing the effect of obliqueness on the load distribution of engaged teeth in crown gear coupling .

分析了轧机用非共轭鼓形齿联轴器的齿面啮合特征，并在此基础上进一步研究齿间周向载荷的分配规律，给出一种分析非共轭鼓形齿联轴器工作倾角对其齿间载荷分配影响的有效方法。

Main products are spindle gear, single-double-tooth, the tooth crown, the umbrella gear, the wheel, Helical, worm, security off teeth, And small teeth, such as copper module.

主要产品有主轴齿、单双层齿、皇冠齿、伞齿、滚轮、斜齿、蜗杆、安全离合齿、及小模数铜齿等。

The first three largest number of missing teeth is as follows: maxillary first molar, maxillary second molar and mandibular first molar. The first three largest number of resident teeth is as follows: mandibular cuspid, mandibular bicuspid and maxillary cuspid. The cases without occusal relationship account for 19.51%; and the cases which need occlusal reconstruction or occlusal elevation account for 19.51% of all the cases, while food impaction exists in 21.84% cases.

结果：本组老年人平均缺失牙齿9.10颗，缺失最多的前3位牙齿是上颌第一磨牙、上颌第二磨牙和下颌第一磨牙；余留最多的前3位牙齿是下颌尖牙、下颌第一双尖牙和上颌尖牙。19.51%的病例颌骨间无咬合接触关系，19.51%的病例修复时需咬合重建或咬合抬高；21.84%的病例修复前存在食物嵌塞。

The gears are assumed rigid, but at the contact gear teeth, a spring and viscose dashpot are used to simulate the effect due to the deformation of the teeth resulting from large contact forces.

有关齿轮的部分，除将其视为刚性圆盘外，於两齿轮相接触处的变形以及摩擦，则以弹簧与阻尼器模拟。

If you do not brush your teeth, you will get decayed teeth.

如果你不刷牙，你的牙会坏的。

The only way to maintain the health of deciduous teeth and permanent teeth may have future health.

只有这样，才能保持乳牙的健康，并且才可能有未来恒牙的健康。

Brush your teeth everyday and use dental floss regularly, which both help with healthy teeth.

2，天天刷牙并且定期用牙线，这样有益于健康的牙齿。

Your dentist may also advise you to visit a dental hygienist who can remove plaque build-up and calculus from your teeth and show you the best ways to keep your teeth clean and healthy.

你的牙医也可能建议你访问牙齿卫生员谁可以移除斑块的建立和微积分从您的牙齿和显示您的最佳办法，让您的牙齿清洁和健康。

Other diagnostic features include the presence of a crest along the anterodorsal midlines of the premaxillae,the edentulous maxilla,the presence of a groove-like trough along with the anterolateral margin of the maxilla on the ventral surface,the presence of six conical premaxillary teeth,and no more than six conical dentary teeth which are restricted to the anterior portion of the dentary.

其他主要特征有：前颌骨沿前背中央有一隆嵴；上颌仅前颌骨有6枚圆锥形齿，无上颌骨齿；上颌骨沿前腹侧缘有一沟槽；下颌齿骨齿都集中在前端且至多不超过6枚。依据上述这些特征很易把短吻贫齿龙与其他已知海龙相区别。短吻贫齿龙头骨顶面松果孔大且很前位，头骨腭面的锄骨和翼骨均无齿，它的颈较长(至少可以辨认出13个颈椎)。

Methods Collected 25 extracted teeth with shallow dentin caries in 5 age groups, each group 5 teeth.

方法收集5组不同年龄组含有牙本质浅层龋的离体牙，每组各5颗牙齿。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。