查询词典 tooth

Using two-flank-staining method, inspect the tooth flanks of the driven bevel gear, 3 to 4 equispaced spots along the circumference, at each spot apply color to 2 to 3 teeth, the correct meshing print requirements are: print width in the direction of face width not less than 50% to 60% of the facewidth , and that in the direction of tooth depth not less than 40% to 50% of the tooth depth.

用两面着色法，在从动锥齿轮的齿面检查，沿圆周均布3-4处，每处2-3齿涂色，正确啮合印迹要求为：在齿宽方向的印痕宽度不小于齿宽的50%---60%，在齿高方向的印痕宽度不小于齿高的40%---50%。

Before machining, we can check the gear's tooth shape easily so as avoiding tooth's abnormity. We can measure tooth parameters, and get the figurate cutting tool's dimensions.

在加工之前，便可对齿轮副的齿形进行检查，防止齿形发生异常；可以测量齿形数据，以确定高速铣削用成形铣刀的尺寸数据。

Absctrct: Objective This study was designed to investigate the stress distribution in the surface of tooth and peridental tissues and the initial displacements of tooth in the maxillary under two orthodental simulating force rectangular archwire with T loop and II class elastic used clinically by the 3-D finite element method so as to clarify the biomechanism of orthodontic tooth movement and component of optimal orthodontic force system.

目的：通过有限元分析法比较两种工况下上颌各牙齿的位移趋势和牙根及牙周支持组织内的应力分布规律，为临床治疗中合理选用矫治力系统以便有效的控制牙齿移动类型提供可靠的理论依据。

Root canal treatment or endodontics is used to save the tooth when the dental pulp (blood vessels and nerve in the centre of the tooth) dies and the tooth becomes infected.

根管治疗或牙髓是用来保存牙齿时，牙髓（血管和神经在该中心的牙齿）去世和牙齿，成为感染。

Tiger tooth namely canine teeth, be top two single sharp tooths of the Han, at the age of 23 outwardly Pi, be like the tooth of tiger quarrel very much, so call "tiger tooth".

虎牙即犬齿，就是上颌的两颗单尖牙，在十二三岁时向外毗出，很像老虎口角的牙齿，故谓&虎牙&。

Clinical medium usually run into some serious tooths week the tooth row of patient's defection and damage, its artificial teeth repairs an opposite difficulty, can choose a cone form set tube hat artificial teeth, even if tooth week blaze a patient the tooth row only remain 1~5 natural tooths, can also repair.

临床中常常碰到一些严重的牙周病患者的牙列缺损，其义齿修复相对困难，可选择圆锥形套筒冠义齿，即便牙周炎病人牙列仅剩1~5颗天然牙，也可修复。

Mouth cavity health inspection:Carry on a mouth cavity health inspection every half year, adopt a super voice Jie tooth the machine carry on 2-3 whole Jie tooths annually and make the tooth noodles, tooth neck usually been placed in clean appearance.

口腔健康检查：每半年进行一次口腔健康检查，采用超声洁牙机每年进行2－3次全口洁牙，使牙面、牙颈部经常处于洁净状态。

In this dissertation, first, based on theory of cutting tooth about the gleason spiral bevel gear, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of the double circular arc spiral bevel gear, using GB12759-1991 type of double circular arc gear as a basic gear profile, a three-dimension solid model of double circular arc spiral bevel gear which has the good adaptability was carried out by used of Unigraphics software;Second, by researching of the algorithm about contact and collision as well as various contact types based upon Contacting Finite Element Method, a foundation was laid for selecting the contact type in analyzing contact stress of double circular arc spiral bevel gearing;Finally, through the connection port of PARASOLID between UG software and ANSYS/LS-DYNA software, the three-dimension solid model of double circular arc spiral bevel gearing obtained above in UG was imported into ANSYS/LS-DYNA, a finite element analyzing about contact stress of double circular arc spiral bevel gearing was carried out by applying new loading method.

本文首先基于格利森弧齿锥齿轮加工原理及切齿啮合过程中的啮合方程、产形轮齿面方程以及双圆弧弧齿锥齿轮的齿面方程，选用GB12759-1991型双圆弧齿轮基本齿廓为基准齿形，利用Unigraphics软件的建模功能，绘制了有较好适应性的双圆弧弧齿锥齿轮传动三维实体模型。其次，描述了应用有限单元法进行实体接触与碰撞问题算法的公式，研究了有限元分析中的各种接触类型以及双圆弧弧齿锥齿轮接触应力分析中所选择接触类型的依据。最后，通过UG软件和ANSYS/LS-DYNA之间的PARASOLID接口工具包，将UG软件中得到的啮合齿轮模型导入ANSYS/LS-DYNA有限元分析软件，给出一种新的加载方法，进行了双圆弧弧齿锥齿轮传动的接触应力的有限元分析。

Bulk volume of the volume of block block block caliper micrometer-specific block, such as special types of straight shank drill bits Serratula straight shank long twist drill set, such as alloy straight shank twist drill reamer type of hand reamer straight shank straight shank machine reamer taper shank machine reamer and other types of coarse tooth cutter straight shank cutter tooth taper shank Rough Milling fine-tooth cutter straight shank end mill, such as hand-tap machine tap tap tap left teeth straight pipe tap, such as garden die die die left teeth straight pipe die die US-made of other alloys such as Alloy blade machine Segment saw blade, such as gear type inverted roller gear Gear planing cutter knife disc-shaped gear gear shaper cutters, such as factory outlets: cast iron flat, square boxes, granite slab, square and so on.

量块 散量块卡尺专用块千分尺专用块等钻头类直柄麻花钻直柄长麻花钻镶合金直柄麻花钻等铰刀类直柄手铰刀直柄机用铰刀锥柄机用铰刀等铣刀类粗齿直柄立铣刀粗齿锥柄立铣刀细齿直柄立铣刀等丝锥手用丝锥机用丝锥左牙丝锥直管丝锥等板牙园板牙左牙板牙直管板牙美制板牙等其他合金刀头合金刀片机用锯条等齿轮倒类齿轮滚刀齿轮刨刀齿轮铣刀盘形插齿刀等厂家直销：铸铁平板、方箱、花岗石平板、直角尺等。

The simulation results show that the asymmetry structure of the ratchet die cavity influences the BMG's flowing behavior greatly. During the material filling tooth cavity, dead zone volumes exist and situate on the areas with sparse teeth distribution. The full filling or not of the ratchet tooth tips, as the final filling region of the forming process, determines the super-plastic forming quality. Adopting smaller punch speed or longer load holding time is necessary for full filling of the tooth tips.

研究结果表明，棘轮模腔结构的不对称性对材料的流动行为影响显著；在材料向齿形的充填过程中存在流动死区，死区的位置处于齿形分布较稀疏的部位；齿形尖角是成形的最后充填部位，在终成形阶段采用较小的压下速度或较长的保压时间，有利于齿形尖角的完全充满。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。