球心 [
qiú xīn]
[数] centre of sphere
- 球是由柔软的凝胶制成,而球心的聚和物稍重一些。
It's a squashy gel ball with a slightly heavier polymer core. - 球心到球面上任何一点的距离都一样。
All points on the surface of a sphere are equally distant from the center. - 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。
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.
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