查询词典 unit sphere

An analytic equation for electromagnetic response of semi-space sphere is derived. The areal, pseudo-sectional and frequency responses of low and high resisting buried sphere trippers in the even semispace are calculated, the characteristics and rules are analyzed.

推导出基于半空间中球体的电磁响应的解析式，计算了均匀半空问中低阻和商阻埋藏球体的倾子的平面、拟断面和频率响应，分析了其特征和规律。

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

The paper studies some problems about engraving Chinese characters on sphere cavity inner surface for parallel robot,including tool path mapping method from plane to sphere cavity inner surface,circular arc interpolation and cutter-orientation real time planning algorithm etc.

研究了并联机器人在球腔内面雕刻汉字所遇到的若干问题，包括平面刀路向球腔内面刀路的映射方法、圆弧插补及刀具姿态实时规划算法等，给出了算例并用 6 HTRT并联机器人进行了验证，为并联机器人在汉字雕刻领域的实际应用奠定了基础。

Let the radius of sphere be egual to phase stress factor k , then, the pressure stress F can be shown by a section of orthodrome on the circle where the sphere and the S 2OS 3 plane intersect.

如果令球的半径为R =k ，则压应力F可用球与S2 OS3 平面相交圆上的一段大圆弧表示。

Regression equal between traction resistance and partial sphere height, bottom circle radium was set up to explore the effect of two evident factors(height and bottom circle radium of the partial sphere) on traction resistance by optimum calculation.

采用二次回归试验设计的方法，建立了球冠高度和球冠底圆半径大小与牵引阻力间的回归方程，进行了优化计算，进一步考察了球冠高度和球冠底圆半径大小两个显著性因素对牵引阻力的影响规律。

There are more than 3000 different kinds of valves available. The products series cover hydraulic turbine input liquid control butterfly valve, soft sealing gate valve, clamp butterfly valve; flange valve, expansion butterfly valve, bi-direction metal seal ing butterfly valve, tri-eccentric metal sealing butterfly valve, eccentric semi - sphere ball valve, eccentric dual -semi - sphere ball valve, and sluice gate, hydraulic slow-closing c heck v alve , v ent valve, adjusting valve, body eccentric valve, dual eccentric butterfly valve, varied eccentric butterfly valve, Check valve with little-resistance, slow-closing, noise-eliminating , butterfly valve with mid temperature and pressure, Other types of check valves and check valve gate 、 expansion joint, and being widely used in petroleum industry, chemistry, food, medicals, light industry, paper, water and electricity, ship and boat, steel and casting, Energy and Environment industry. The main valves are ever used in heat-supplying projects of National council office.

我公司主要产品有双向三偏心金属密封伸缩蝶阀、水轮机进水液控蝶阀、软密封闸阀、三维偏心全金属密封蝶阀、自动补偿双向硬密封蝶阀、耐高温金属密封蝶阀、液控缓闭止回蝶阀、对夹式蝶阀、偏心式蝶阀、伸缩蝶阀、偏心半球阀、偏心球阀、通风阀、调节阀、双偏心蝶阀、无销蝶阀、微阻缓闭消声止回阀、旋启式止回阀、防泥沙型蝶阀、自动补水阀、阀板可移动蝶阀、偏心缓闭止回阀、多功能水力控制阀、闸门、伸缩接头和管道伸缩器等三十大系列3000多个规格，广泛用于电力、石油、化工、食品、医药、轻纺、造纸、供排水、船舶、冶炼、能源、环保等行业的腐蚀性、非腐蚀性气体、液体、半流体及固体粉末容器和管网中。

The elements existed together in their purity, without mixture and separation, and the uniting power of Love predominated in the sphere: the separating power of Strife guarded the extreme edges of the sphere.

这些元素以纯洁、没有混合与分离的状态共存，爱的统一力在球体中占统治地位：恨的分离力保护着天体的边缘地带。

The potential distribution in space, charge density, the interaction between the needle charge and electric sphere when the needle charge exists outside of the electric sphere were discussed.

讨论了导体球外存在点电荷时空间的电势分布、导体球表面的电荷密度、点电荷与导体球之间的相互作用力，结果给出即使导体球与点电荷带同种电荷也可以相互吸引。

The potential distribution in space, charge density, the interaction between the needle charge and electric sphere when the needle charge exists outside of the electric sphere were discussed.

讨论了导体球外存在点电荷时空间的电势分布、导体球表面的电荷密度、点电荷与导体球之间的互作用力，结果给出即使导体球与点电荷带同种电荷也可以相互吸引。

It is equipped with a falling prevention support guarantee unit; a lifting arm gyro angle lock unit and a bracket steel rope forced synchronization unit. The trey is low and suitable extensively. The trey is low and suitable extensively.

它具有简洁、合理、选用液压动力单元和油尼龙滚轮结构，升降平稳低噪音，它设有托架防跌落支撑保险、托臂回转角度锁定、托架钢索强制同步装置。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。