sphericity
英
美
网络 球形; 球度; 球形度; 圆球度
COCA.43590
英英释义
noun
- the roundness of a 3-dimensional object
双语例句
- The likelihood ratio criterion of sphericity test, its asymptotic expansion and limiting distribution are obtained.
论文得到了球形检验的似然比准则,它的渐近展开与极限分布。 - The control method of size and sphericity for ceramic UO 2 microspheres
陶瓷UO2微球尺寸与球度的控制方法 - The theory of evaluation and the method of measurement of sphericity
球度误差的评定理论、判别方法和测试技术的研究 - In this paper, the test mode on sphericity deviation measurement by three-coordinates measuring machine and the conclusion from measurement results are given.
本文给出了在三坐标机上测量钢球球度误差的测试方法及对测试结果的分析。 - It was found that petroleum pitch addition could improve the sphericity of pitch spheres by stabilizing the surfactant orientation on the interface between pitch molecules and dispersant.
研究发现,添加石油沥青可以促进乳化液中沥青分子与分散剂界面上表面活性剂分子的取向稳定性,从而明显改善沥青微球的球形度。 - Finally, analyzed influence to the sphericity measurement caused by the rotation error of the grinder.
最后分析了精密球面磨床主轴回转误差对于球度在位测量结果的影响,提出了提高测量精度的方法。 - Through analyzing and researching on some related references of error separation techniques at home and abroad, this paper has built-up some mathematical models that are used to detect and evaluate sphericity error and cylindricity error of the workpiece with multi-point methods as well as unconstrained optimizational methods.
通过分析和研究国内外误差分离技术的有关文献,建立了多点法测量和无约束最优化方法评定工件球度误差和圆柱度误差的数学模型。 - The silica particle diameters, monodispersity, degree of sphericity and characters of microstructures were characterized by SEM and FTIR.
通过扫描电镜(SEM)观察和傅立叶变换红外光谱仪(FTIR)证明了Si02颗粒的粒径尺寸、单分散性、球形度以及其微结构特征。 - The results indicate that high sphericity and smooth-faced alumina based ceramic microspheres can be obtained by twice sintering process.
结果表明:采用二次烧成工艺可以获得球形度高、表面光滑的氧化铝基微球。 - Then, the error produced by sphericity error, material refractive rate error and optical center error of cat eye are discussed.
从猫眼的球度误差、材料折射率误差和光学中心误差几个方面对猫眼产生的光学误差进行了分析。