To solve the differential equations, we divide the sphere into two parts: inner part - a sphere with small radius and outer part - a spherical shell.
在微分方程求解过程中，把整个球体分成两部分：内部是球心附近的一个小球，外部为一球壳。
The adoption of the tool in the structure for working inner sphere is easy in manufacture, working as well as radius adjustment, and high in working accuracy.
采用此种结构的刀具加工内球面，易于制做、加工半径易于调整、加工精度高。
Inner- and outer-sphere surface complexes of all such three cations with tetrahedral and octahedral charge sites were observed in the one-layer hydrates.
一层水合物中可以观察到三种阳离子都能和四面体电荷与八面体电荷位置分别形成内、外配位作用。
With cars, milling, boring, drilling four automation function, can be turning sphere, cylinder, cone, thread, tapping, end face, inner and outer ring groove, etc.
具有车、铣、镗、钻四大自动化功能，可车削球面、柱面、锥面、螺纹、攻丝、端面、内外环槽等。
The outer rig is sphere that based on the bearing's center, the rolling entity linearly come into touch with raceways of inner and outer ring, which can support greater radial loading.
外圈是以轴承中心点为球心的球面， 向心球轴承具有自动调心性， 深沟球轴承滚动体与内、外圈滚道之间是线性接触， 外球面轴承能承受大的径向载荷。
The wear-resistant body can be arranged on the surface of the inner sphere pit.
所述的耐磨体可设在内球窝表面。
Style details : Here is an outer grey background color with an inner brown blue sphere.
样式细节：一种浅灰色的颜色为背景以一个轻微的二面对切的作用。
Style details : Here is an outer grey background color with an inner brown blue sphere.
样式细节：一种浅灰色的颜色为背景以一个轻微的二面对切的作用。
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