查询词典 Sphere

Ball and plug is the same type of valve, only its closure is a sphere, the sphere rotates around the body axis to achieve open and close a valve.

球阀和旋塞阀是同属一个类型的阀门，只有它的关闭件是个球体，球体绕阀体中心线作旋转来达到开启、关闭的一种阀门。

It is pointed out that the critical stretch of the sphere composed of the first kind of materials given in this chapter is less than that for the perfect materials. Finally, stability of solutions of the cavitated bifurcation equation is discussed. 3. In Chapter 5, problem of radial motion for a solid sphere composed of an imperfect incompressible hyper-elastic material, subjected to a surface tensile dead load, is examined.

第四章中，分别研究了两类具有缺陷的可压缩超弹性材料球体在表面均布的径向拉伸作用下的空穴分岔问题，得到了两类材料球体的径向变形函数的参数型解析解和参数型空穴分岔解，同时指出了本章中给出的第一种缺陷材料组成的球体与无缺陷材料的相比会提前发生空穴分岔。

For example, when there is only an alcohol as dopant, fiber-shaped nanostructure polyaniline is easily formed; when there is only a metallic ion as dopant, sphere-shaped nanostructure polyaniline is easily formed; when alcohol and metallic ion coexist, fibrous and sphere-shaped nanostructure polyaniline are formed at the same time.

如仅有醇类掺杂剂存在下，苯胺易于聚合成纤维状纳米结构的聚苯胺；仅有金属离子掺杂剂存在下，苯胺易于聚合成球形纳米结构的聚苯胺；在醇和金属离子掺杂剂共存时，苯胺能同时聚合成纤维状和球形纳米结构的聚苯胺。

Father : The globe is divided in to 24 time zones due to the time differences caused by different longitudes that the west-sphere and the east-sphere have.

爸爸 ︰东、西半球因经度位置的改变所造成的时间上的差异，使全球分成24个不同的「时区」。

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。

Concept To describe changes in the relative configuration of rocks, imagine that there is a unit sphere, 1 in radius, in the rock before it is deformed. When the rock is deformed homogeneously, the sphere becomes an ellipsoid. Then this ellipsoid is called strain ellipsoid, whose shape and orientationrepresents the rock's strain condition.

概念 为了形象地描述岩石的应变形态，设想在变形前岩石内有一个半径为1的单位球体、平均变形后成为一个椭球，以这个椭球形态和方位表示岩石应变状态这个椭球称应变椭球。

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 different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。