The enamel surface microhardness was measured by a Leitzs microhardness tester.
采用维氏显微硬度仪测定经饮料浸泡后牙釉质表面显微硬度的变化。
The surface microhardness was substantially increased compared with the untreated.
表面显微硬度较未处理的样品明显提高。
The surface microhardness increases and the grain sizes in nanocrystalline surface de…
随着高能喷丸时间的增加 ，表面层的晶粒尺寸变小 ，而表面硬度提高。
After ultrasonic impact, the surface microhardness and the section microhardness are obviously increased.
冲击后接头的表面和断面显微硬度均得到了提高。
The high frequency induction hardening can't raise the surface microhardness of the cold precision forging spur gear.
高频感应淬火不能达到硬化冷精锻直齿圆柱齿轮齿面的目的。
Objective This in vitro study quantitatively assessed the effect of frequency and time span of immersion of human teeth in acidic soft drinks on enamel surface microhardness.
目的本实验用显微硬度测量法，定量研究和评估人离体牙釉质在酸性饮料中的硬度变化，比较牙釉质在饮料中浸泡时间及浸泡频率对釉质表面硬度的影响。
The crack in quenching boundary of the hydraulic press plunger surface was analyzed by means of chemical composition analysis, microstructure examination and microhardness testing.
采用化学分析、金相检验和显微硬度梯度试验等方法对油压机柱塞表面淬火交界处裂纹进行了分析。
In this paper the mechanism and process of light beam surface alloying were investigated by SEM, X-ray diffraction, optical microscope, microhardness etc.
采用SEM、X射线、光学显微镜、显微硬度计等手段研究了高能密度光束表面合金化的机理和工艺。
The ceramic coatings on the surface of some metals can improve the shortcomings of low microhardness, poorly corrosion and wear resistance, in the same time maintain the property of the metals.
金属及其合金表面进行陶瓷化可以改善金属基体的硬度低、耐磨耐蚀性差、可加工性差等不足，并且能保证原金属材料的使用性能。
The microhardness and surface roughness of specimens before and after shot peening was studied and analysed.
分析研究了喷丸强化处理前后的显微硬度和表面粗糙度。
The effect of load specimen surface roughness and test deviation amendment on microhardness of aeronautical noble metal (alloy) wires and sheets was studied in this paper.
研究了加载负荷、试样表面粗糙度及测量偏差修正对航空用贵金属（合金）丝材和薄片显微硬度测量的影响。
Microhardness on the surface layer were measured by microhardness testing machine.
利用显微硬度试验机来测量表面显微硬度。
A great deal of tests show that the finishing equipment has a very good effect on reducing crank's surface roughness, increasing its microhardness and cleanliness.
同时经过大量的实验验证，光整加工设备对降低曲轴表面粗糙度、提高表面显微硬度和清洁度能够起到很好的效果。
Objective To investigate the influence of fluoride foam of different concentration on microhardness of demineralized enamel surface.
目的观察不同浓度氟泡沫对脱矿牙釉质表面显微硬度值的影响。
The results of microhardness and corrosive resistance showed that mechanical properties of surface layer have been improved due to the refined grain.
轰击后样品表面的显微硬度与耐腐蚀性测试结果表明，显微组织的细化，改善了金属材料表面的物化性能。
Moreover, the performances of sample surface, such as microhardness, friction coefficient and corrosion resistance are evidently enhanced.
在试样的表面性能方面，发现注入后的表面硬度、摩擦系数、防腐蚀能力得到了明显的增强。
The depths and its uniformity of the surface hardened layer, its microhardness and wear resistance are further improved under two-passes grinding.
双程磨削淬硬可使表面硬化层深度及其均匀性、显微硬度及耐磨性得到进一步提高；
The microstructure and surface morphology of the coating was detected by X-ray diffraction and SEM. The microhardness and adhesion of the coating was tested.
用X射线衍射和扫描电子显微镜对镀层结构和形貌进行表征，并对镀层硬度及结合力进行测试。
Acoording to the surface appearance and the microhardness of coating, the parameters of silver plating with pulse current are optimized by the orthorhombic experiment.
以镀层表面形貌和显微硬度为考核指标，采用正交试验法优选了脉冲镀银参数，采用优选的脉冲参数电镀与直流电镀的银镀层作了比较。
The microhardness of various point of milling working surface gradually reduces with the increase of distance of cutting surface, and then remains flat.
垂直于铣削加工面各点的显微硬度，随着距切削表面距离的增大而逐渐降低，且趋于平缓；
The microstructures of the surface composites were analyzed by SEM and EDS, the phase composition was examined by XRD, and the microhardness was also measured.
采用SEM、EDS以及XRD对表面复合体微观结构及相组成进行分析，并对其显微硬度进行评测。
The microstructures of the surface composites were analyzed by SEM and EDS, the phase composition was examined by XRD, and the microhardness was also measured.
采用SEM、EDS以及XRD对表面复合体微观结构及相组成进行分析，并对其显微硬度进行评测。
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