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洞形
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  cavity form
     Methods After cavity preparation with superpulsed CO 2 laser the reaction of pulp tissue and cavity form were examined by light microscopy and scanning electron microscopy.
     方法 采用CO2 超脉冲激光制备窝洞 ,结合光镜及扫描电镜观察牙髓反应及洞形结构。
短句来源
     Methods After 24 hours cavity preparation with Er,Cr:YSGG in the teeth of experimental Chinese minipigs,the reaction of pulp tissue and cavity form were examined by light microscopy and scanning electron microscopy.
     方法 在中国小型猪牙齿上 ,采用铒、铬 :钇钪镓石榴石激光制备窝洞 ,2 4小时后断头处死 ,拔除牙齿在光镜和扫描电镜下观察牙髓反应及洞形结构。
短句来源
  hole shape
     To investigate the clinical effects of dental implantation after column hole shape endosseous expansion in alveoli of anterior maxilla.
     【目的】观察上颌前部牙槽骨内圆柱洞形扩宽后行同期人工牙种植的临床效果。
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  “洞形”译为未确定词的双语例句
     Methods The occlusal surface of the right first and second maxillary molars in 15 dogs were unilaterally raised 1.5mm with the casting Ni Cr inlays which were fixed in Class I hole.
     方法 高出咬合面 1.5mm的镍铬合金嵌体粘固于 15只杂种犬右侧上颌第一、二磨牙咬合面的I类洞形内 ,造成对牙合牙的创伤。
短句来源
     OBJECTIVE: The purpose of this study was a 4-year clinical evaluation of a hybrid posterior resin composite (CLEARFIL AP-X/SE BOND) in filling for posterior teeth with modified USPHS&Ryge evaluation criterion.
     目的:采用USPHS&Ryge标准,对比评估后牙树脂CLEARFIL AP-X/SE BOND在成人后牙不同洞形(Ⅰ、Ⅱ、Ⅴ)的4年临床疗效。
     Choosing displacement deviation of the characteristic points at cavern perimeter as objective function, controlling sizes of geometric shape of the cavern as design variables, some optimization of cavern shape are proposed.
     本文探讨对地下洞室形状进行优化设计的方法及其应用,提出了选择洞周特征点的偏差位移为目标函数,选择洞形的几何控制点坐标或洞形特征尺寸为设计变量,并能满足一定设计约束条件的优化分析方法。
短句来源
     METHODS:Six kinds of Class tunnel restorations of the first mandibular molar were prepared,the ridge thickness were 1.5,2.0 or 2.5 mm,the lateral cavity of the molar was oval or round in shape.
     方法:在下颌第一恒磨牙设计咬合面—邻面隧道洞型,在邻面设计椭圆与圆形2种洞形,保留边缘嵴厚度分为1.5、2.0、2.5mm3种。
短句来源
     Methods The occlusal surface of the right first and second maxillary molars in 18 dogs were unilaterally raised 1.5 mm with the casting Ni-Cr inlay which were fixed in Class I inlay hole.
     方法高出咬合面1.5mm的镍铬合金嵌体黏固于18只杂种犬右侧上颌第一、二磨牙咬合面的I类洞形内,造成对牙合牙的创伤。
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  相似匹配句对
     THE HOLE
    
短句来源
     7 cases were filled by cavity preparation.
     制备补7例.
短句来源
     Initial Inquiry into the Cave Shape for Rational Excavation
     合理开挖地下初探
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     The Hole In the Road
     路上的
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     Shape * Shadow
     *影
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  tunnel shape
No negative effects of enlarged area, diameter, or tunnel shape on clinical results were found in our study.
      
Factors, including the effects of anisotropy in the initial stress state and the tunnel shape on the plastic zone around an excavated tunnel have been examined.
      
Although there was much variation within species, certain interspecific differences in tunnel shape appeared.
      
  cavity form
The calculated cavity form factor C010 as a function of the cavity resonant frequency.
      
The openings of both the spiracle and opercular cavity form by an invagination of ectoderm and evagination of endoderm.
      
  hole shape
Features of the hole shape formation during laser drilling of an ultrafine-grained aluminum alloy
      
Complex variable function method fob hole shape optimization in an elastic plane
      
In this paper, a complex variable function method for solving the hole shape optimization problem in an elastic plane is presented.
      
Numerical results are given for typical examples, both for a circular hole and with the hole shape included in the optimization.
      
For wavelengths at which both traps absorb, the hole shape is clearly a composite of two Lorentzians, corresponding to hole-burning in both states simultaneously.
      
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The finite element method is used in this paper to determine the initial earth stress by displacements in surrounding rock around an excavation, including the linear elastic and elasto-plastic problem. Not only the calculation theorem and formulae, but also the flow chart for nonlinear plane strain problem and example of verification are in it, which can be used in practice.The main features of this method are as follows:1. One can use in calculation the displacement information that can be got easily through...

The finite element method is used in this paper to determine the initial earth stress by displacements in surrounding rock around an excavation, including the linear elastic and elasto-plastic problem. Not only the calculation theorem and formulae, but also the flow chart for nonlinear plane strain problem and example of verification are in it, which can be used in practice.The main features of this method are as follows:1. One can use in calculation the displacement information that can be got easily through in-situ measurements;2. It can be used for any shape excavation and at any excavating stage;3. It can eliminate the effects of spacial action induced by excavation;4. It can determine the initial tectonic stress independently (namely, not with the gravitational stress), because of which one can determine the initial earth stress distribution more accurately.In addition, this method has also considered the way that can enhance the calculation accuracy by using the statistics theorem.

本文给出了一种由洞周围岩位移量测值反馈确定地层初始地应力的有限元计算法,包括线弹性问题和非线性问题。文中不仅给出了计算原理和公式,而且给出了平面应变问题非线性有限元计算法的程序框图和算例验证,可供工程实践采用。这一方法的主要特点,是利用现场易于量测的位移信息进行分析计算,并适用于任意洞形地下洞室的任意开挖阶段。此外,文中给出的平面应变问题有限元计算法还可排除洞室开挖的空间效应的影响,并能单独确定初始构造地应力,以便较为精确地确定初始地应力场的分布现律。本文还根据数理统计原理考虑了提高计算精度的方法。

This article analysis the forward effect of the infected root canal and the pathological changes of the root apex of 115 cases with 112 successes which account for 97.3 percent and 3 unchanged. The auther suggests a new design for opening a hole to the pulp chamber, whteh can cut less tissue, treat the root canal more easily, strengthen the resistance form, prevent tooth fracture and keep the tooth in better condition. Besides, problems concerned have been discussed here with the authors experience from practice....

This article analysis the forward effect of the infected root canal and the pathological changes of the root apex of 115 cases with 112 successes which account for 97.3 percent and 3 unchanged. The auther suggests a new design for opening a hole to the pulp chamber, whteh can cut less tissue, treat the root canal more easily, strengthen the resistance form, prevent tooth fracture and keep the tooth in better condition. Besides, problems concerned have been discussed here with the authors experience from practice.

本文对115例感染根管及根尖病变远期疗效观察结果进行了分析,其中成功112例,占97.3%,无改变3例。笔者对开髓提出新的洞形设计,可减少切割牙体组织,便于处理根管,增强抗力形,防止牙折和更好地保存牙齿。并对有关问题结合实践体会进行了讨论。

For the class Ⅱ cavity restored with amalgam,stress analysis was done by finite element method. Based of the analytic results,an improved cavity has been designed,and its stress distribution has been worked out.The analysis showed that the improved cavity was characterized by lessening wear of healthy tooth and lowering stresses.It was superior to the traditional cavity in both retention and resis- tance.The work provides a theoratical basis for clinical application.

选择下颌第一磨牙两个进行分析对比,采用有限单元法,对银汞充填Ⅱ类洞进行应力分析,以此为依据改进了Ⅱ类洞的制备要求,设计了一种新洞形并求得其应力分布。分析表明:新洞形具有磨损牙体组织少,应力分布小,优越于传统洞形的固位和抗力要求的特点,为临床应用提供了理论基础。

 
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