查询词典 spherical

Then the focus and spherical aberration of the different conditions of different types of lens are obtained.

衡量电子透镜的会聚发散作用最简单的方法就是分析计算它们的焦距。

The article mainly introduced the type of abradant, production methods, production technics and especially introduced two kinds of abradant, the common aluminum hydroxide by sintering process and spherical aluminum hydroxide with sodium aluminate and carbon dioxide.

主要介绍了牙膏磨擦剂的种类、各类牙膏磨擦剂的生产方法和生产工艺，并重点介绍了两种氢氧化铝牙膏磨擦剂，即以烧结法工艺生产的普通氢氧化铝颗粒和由铝酸钠溶液和二氧化碳气体制备的球形氢氧化铝牙膏磨擦剂，并给出了两种氢氧化铝牙膏磨擦剂的工艺流程图、电镜分析图谱、物化性能和工艺指标。

The results of SEM and AFM show that the obtained titania powder from the solvent of distilled water and absolute alcohol is intact solid and spherical particle with smooth surface and perfect dispersibility. The crystalline size is about 300 nm.

SEM和AFM结果表明，以去离子水和无水乙醇混合液为溶剂制备的TiO2粉体为完整的买心球形颗粒，颗粒表面非常光滑，分散性比较好，粒径约为300 nm。

Using VB6 programming software, the different marked volume of corresponding absolute altitude for the horizontal vessel which have arbitrary ellipse head and spherical vessel can be calculated more rapidly and accurately, and the method was not restricted by vessel specifications.

介绍了利用VB6编程软件，快速准确地计算出具有任意椭圆形封头的卧式容器及球罐不同标高液位所对应体积的方法，该方法不受容器规格限制。

Analytical expressions for electromagnetic fields of a vertical or horizontal electric dipole over the finitely conducting plane are derived subject to the boundary conditions; Sommerfeld type integral contained in Hertz potential is expressed as the sum of two parts: zeroth order Hankel function and an absolutely convergent series of spherical Hankel function.

在此边界条件下，推导出有限导电平面上垂直和水平电偶极子电磁场的解析表达式；赫芝位函数中的索末菲型积分被表达成零阶汉克尔函数与绝对收敛的球汉克尔函数级数之和的形式。

The scattering coefficients of a single charged sphere are deduced. And with spherical vector wave functions and addition theorem, the scattering coefficients of multiple charged and uncharged spheres are derived. The sampling method of simulating a Gaussian beam in use of MC is provided.

详细推导了单个带电球粒子的散射系数；并采用矢量波函数展开方法结合矢量波函数的加法定理导出了高斯波束入射多个带电/不带电球粒子的散射系数；提出了用MC模拟高斯波束的抽样方法。

These have been developed by the numerical integration of the differential equations of gas motion for a spherical blast wave in air.

这些都是根据空中球形爆震波气体运动的微分方程的数值积分得到的。

A helicopter rotor hub for use in an air-driven helicopter comprises a section of a spherical stainless steel ball attached to the end of a hollow rotor shaft.

直升机旋翼枢纽用于空气驱动直升机组成部分球形不锈钢球重视的结尾空心转子轴。

Advantageous physical and chemical characteristics, the highly purified and ultra-fine fused spherical quartz powders (spherical silica powder—SSP) become indispensable for packing and sealing materials in LSI and SLSI. The actuality of research and development of SSP in China is studied and the international situation of production is also introduced briefly.

高纯超细熔融球形石英粉由于具有高纯度、高耐热、高耐湿性、高可靠性、高填充量、低粘度、低放射性、低应力、低膨胀、低摩擦系数等优越的物理化学性能，在大规模、超大规模集成电路的基板和封装料中，成了不可缺少的优质材料。

This article evaluates the uncertainty of measurement results of measuring spherical metal tank capacity in accordance with JJG642-1990 V.R. of spherical metal tank capacity arid JJF1059-1999 evaluation and expression of uncertainty in measurement.

依据JJG642-1990《球形金属罐容量国家计量检定规程》和JJF1059-1999《测量不确定度评定与表示国家计量技术规范》，对环形金属罐容量的测量结果不确定度进行评定。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。