查询词典 tooth paste

Generally say, the oral hygiene is bad, tartar and dental calculus pile up, the food Qian fills, germ and germ spot function, badly fill dental cavity and have a tooth filled incitement, or oppress gum etc., is all important partial reason that causes a tooth to blaze for week.

一般说，口腔卫生不良，牙石和牙垢堆积，食物嵌塞，细菌和菌斑作用，不良补牙和镶牙刺激，或压迫牙龈等，都是引起牙周炎的重要局部原因。

Accordirg to the problem existing in tooth contact analysis of harmonic gear drive, a new method is proposed in this paper for tooth contact analysis base on the finite element method and a new thought for calculating the backlash is given also.

针对当前谐波传动接触状态分析中存在的问题及研究现状，本文建立了一种基于有限元进行谐波齿轮传动接触状态分析的新方法，并提出了计算齿间侧隙的新思路。

This action causes the next set of teeth to align with the teeth on the platen and causes the forcer to move from tooth to tooth over the platen in linear travel.

这个动作引起下一次的牙齿排列的牙齿在滚筒，使forcer从牙牙在滚筒在线性旅行。

When current flow to the coil is stopped, the forcer will align itself to the appropriate tooth set and create a holding force that tends to keep the forcer from moving left or right to another tooth.

当对卷的当前流程被停止， forcer对被设置的适当的牙将排列自己并且创建倾向于保留从左边或右边移动的forcer向另一颗牙的藏品力量。

Fossil of tooth of high-definition clear Yuanmou ManYuanmou Man fossil includes two to go up inside fore-tooth, one left one right, belong to same adult individual.

高清晰元谋人牙齿化石元谋人化石包括两枚上内侧门齿，一左一右，属于同一成年人个体。

AIM:To investigate changes of the objective indicators before and after treatment of lesion in root furcation areas of mandibular molars by method of tooth hemisection in order to evaluate the applications of tooth hemi-section in this field.

目的 ：探讨牙半切术在治疗下颌磨牙重度根分叉病变前后各项客观指标的变化，为该治疗方法的进一步应用提供依据。

The deformation curve of cutter tooth and gear tooth are obtained by analying deformation in shaving domain.

这样的剃后齿形不仅影响齿轮的传动精度，而且影响其噪音特

In this paper,the variation pattern of the contact point on cutter tooth and gear tooth is analyzed during gear shaving process.

0引言剃齿作为齿轮精加工工艺之一，由于其效率高、成本低、适应性强而被广泛采用。

Based on the theory of gearing and differential geometry, a series of geometric relationships between conjugate tooth surfaces are analyzed, basic relationships of normal curvature as well as geodesic torsion between conjugate tooth surfaces are derived mathematically for the most general form of gearing.

基于微分几何和齿轮啮合理论，分析了共轭啮合齿面间的一系列几何关系，从而揭示了两个作空间共轭啮合运动的齿面之间的法曲率、短程挠率的内在几何联系。作为上述理论的具体应用，研究了准双曲面齿轮传动两齿面之间在给定参考点处的法曲率、短程挠率的关系

Based on the theory of gearing and differential geometry, a series of geometric relationships between conjugate tooth surfaces are analyzed, basic relationships of normal curvature as well as geodesic torsion between conjugate tooth surfaces are derived mathematically for the most general form of gearing .

作为上述理论的具体应用，研究了准双曲面齿轮传动两齿面之间在给定参考点处的法曲率、短程挠率的关系。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"