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standard samples
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  标准试件
    Methods Standard samples were welded by laser in three kinds of voltage and for two kinds pulse duration (corresponding to different pulse energy, peak value power and power density).
    方法 用 3种电压、2种脉冲持续时间对应Nd∶YAG激光不同的脉冲能量、峰值功率和功率密度 ,对钴铬合金标准试件进行焊接 ,并测量其机械强度。
短句来源
    Methods Sinfony and belleGlass composite resins were used to make standard samples (25 mm×2 mm×2 mm) with and without glass fibers. After all specimens were stored for 24 hours in distilled water at (37±1)℃, the flexural strength and flexural modulus were measured on a universal test machine.
    方法 制作Sinfony和belleGlass两种复合树脂的加入和不加预浸润玻璃纤维的标准试件 (2 5mm× 2mm× 2mm) ,于 (37± 1)℃的蒸馏水环境中保存 2 4h后 ,在万能力学试验机上测试弯曲强度和弹性模量。
短句来源
    Methods Standard samples of Dentsply D ET REY Carat and Tibond porcelain fused to metal restorations were made. Color Parameters were tested by cs 5 spectrophotometer. Statistic analysis was done and the color differences were calculated.
    方法 制作 Dentsply DETREY- Carat瓷粉与钛 -瓷修复体标准试件 ,用 CS- 5型分光光度计测色 ,统计分析测定结果 ,并计算色差。
短句来源
    Methods: Standard samples were welded by laser in three kinds of voltage for two kinds of pulse duration, then measuredtheir mechanical strengthes.
    方法:在3种电压、2种脉冲持续时间条件下,对镍铬合金标准试件进行焊接,测量其机械强度。
短句来源
    Methods Prepare the standard samples of Vita VMK 95, Vita VMK68 and Shofu Vintage ceramics, 10 pieces for each ceramic.
    方法制备VitaVMK95、VitaVMK68、ShofuVintage标准试件各10条。
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  standard samples
A method is developed for the separate determination of aluminum and beryllium using cellulose as the support; the method was used for the analysis of real samples and tested with standard samples.
      
IUPAC Recommendations for Reference Standard Samples in pH Measurements
      
Designing of Standard Samples for Determining the Sensitivity of Eddy-Current Devices to the Metal Inclusion Content in a Parama
      
The reasons of the wide propagation and the high effectiveness of using standard samples of magnetically soft materials are explained.
      
A numerical analysis of these errors is performed using standard samples as examples.
      
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Objective: To evaluate the colour matching degree between light cured composite resins and the attached shade guides. Methods: Four kinds of light cured composite resins and attached shade guides were collected, and then, special shade guides and standard samples were made by the authors with resin materials. The colour difference of the resin and it's attached shade guide was measured and calculated. Results: There was significant colour difference between the attached shade guide and the resin materials,...

Objective: To evaluate the colour matching degree between light cured composite resins and the attached shade guides. Methods: Four kinds of light cured composite resins and attached shade guides were collected, and then, special shade guides and standard samples were made by the authors with resin materials. The colour difference of the resin and it's attached shade guide was measured and calculated. Results: There was significant colour difference between the attached shade guide and the resin materials, and the difference were greater than the value recognized by naked eyes. Conclusion: It is possible to cause a false shade matching by using the attached shade guides in clinic. It seems better to use the shade guide made by ourselves. The better colour matching appears in Z100.

目的:评价附属比色板与实际光敏树脂材料色度的吻合程度。方法:收集了4种光敏树脂,将其制成圆形试件和比色板,分别测取圆形试件、自制比色板与附属比色板的色度值,计算三者间的色度差异。结果:附属比色板与相应的材料间存在明显的色度差异,远远超过肉眼的识别阈。结论:使用附属比色板可能导致临床比色失误,用同批号树脂自制比色板是解决问题的有效方法;Z100附属比色板与树脂色度吻合良好

Objective To study the effect of titanium substructure on color of porcelain fused to metal restoration. Methods Standard samples of Dentsply D ET REY Carat and Tibond porcelain fused to metal restorations were made.Color Parameters were tested by cs 5 spectrophotometer.Statistic analysis was done and the color differences were calculated. Results Most of color parameters were found to be statistically significant at the P ≤0 05 level at substructure layer.But no statistical significance...

Objective To study the effect of titanium substructure on color of porcelain fused to metal restoration. Methods Standard samples of Dentsply D ET REY Carat and Tibond porcelain fused to metal restorations were made.Color Parameters were tested by cs 5 spectrophotometer.Statistic analysis was done and the color differences were calculated. Results Most of color parameters were found to be statistically significant at the P ≤0 05 level at substructure layer.But no statistical significance existed after putting opaque and dentin porcelain.The values of color difference between two groups at opaque and dentin porcelain layers were all smaller than 1 5. Conclusions Titanium substructure had no visually apparent effect on final color of porcelain fused to metal restoration.There was no perceived color difference between corresponding shade of two Dentsply porcelain systems(D ET REY Carat and Tibond).

目的 探讨钛金属基底对钛 -瓷修复体表面色是否有明显影响。方法 制作 Dentsply DETREY- Carat瓷粉与钛 -瓷修复体标准试件 ,用 CS- 5型分光光度计测色 ,统计分析测定结果 ,并计算色差。结果 钛金属基底与Ni- Cr金属基底间颜色差异较大 ,但加不透明瓷及牙体瓷后 ,两组试件各色度指标统计学上无显著性差异 ,色差均小于 1.5。结论 钛金属基底对钛 -瓷修复体表面色无明显影响 ,Dentsply两种瓷粉同色瓷间无明显颜色差异。

Objective To study the effect of various glazing techniques on color of porcelain-fused-to-titanium restorations and their surface texture. Methods Standard samples of Dentsply Tibond porcelain fused-to-metal restorations were made. Selfglazing and over-glazing techniques were used. Color parameters were tested by cs-5 spectrophotometer with CIE1976LAB color system before and after glazing. Statistical analysis was done and the color differences were calculated. The samples′surface structure was...

Objective To study the effect of various glazing techniques on color of porcelain-fused-to-titanium restorations and their surface texture. Methods Standard samples of Dentsply Tibond porcelain fused-to-metal restorations were made. Selfglazing and over-glazing techniques were used. Color parameters were tested by cs-5 spectrophotometer with CIE1976LAB color system before and after glazing. Statistical analysis was done and the color differences were calculated. The samples′surface structure was observed under the same background. Results No statistical significance existed in all of the color parameters between two groups before and after glazing. The values of color difference were all smaller than 1.5. The samples had the same surface structure after treated by different glazing techniques. Conclusions Glazing techniques had no effect on final color of porcelain-fused-to-titanium restoration. No matter what kind of glazing techniques were used, the same surface structure and color would be obtained as long as the same polish way was used before glazing.

目的 探讨不同的上釉方式对钛 -瓷修复体表面颜色的影响 ,并了解修复体表面结构的变化。方法 制作钛 -瓷修复体标准试件 ,分别用不同的上釉方法处理 ,采用 CIE1976 L AB色度系统在上釉前后对试件进行颜色测试 ,得到 L*、a*、b*值及 C* ab(饱和度 )和 hab(色调角 ) ,对所得结果进行统计分析 ,计算两组试件上釉前后的色差值。肉眼观察不同上釉处理的修复体表面结构。结果 用不同上釉方式处理的两组试件的色度值 ,上釉前后的差异均无显著性 (P>0 .0 5 ) ,色差值均小于 1.5 ;两组试件表面结构无差异。结论 不同的上釉方式对钛 -瓷修复体表面颜色的影响无显著差异 ,只要上釉前处理方法相同 ,任何一种上釉方式均可获得表面纹理结构相同的修复体

 
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