n.球(状)体，扁球体，椭球体

The Earth is an oblate spheroid, slightly flattened at the poles.
地球是一个压扁的椭圆体，极区稍有扁平。
The geoid is a model of the Earth that approximates the spheroidal shape of the ocean basins.
地球潮汐水准面是近似海洋盆地椭球形状的一个模型。
The rugby ball's shape is an ellipsoid, which is a type of spheroid.
橄榄球的形状是一种特殊的椭圆体，也就是一个类球体。
In astronomy, stars are often modeled as perfect spheroids for simplicity.
在天文学中，为了简化起见，恒星常常被假定为完美的椭球体。
The distribution of mass within a planet can cause it to assume an oblate spheroid shape.
行星内部质量的分布会导致其呈现出压扁的椭圆体形状。
The principal axes of a spheroid can be defined by its semi-major and semi-minor axes.
一个椭球体的主要轴可以通过它的半长轴和半短轴来定义。
Spherical aberration is a common optical problem where light rays passing through a spherical lens do not converge to a single point, unlike in a perfect spheroid.
球面像差是一个常见的光学问题，在通过球面透镜时，光线并不能像在理想椭球体中那样汇聚到一点。
In crystallography, some minerals grow into spheroidal shapes due to their atomic structure and chemical bonds.
在晶体学中，一些矿物由于其原子结构和化学键的作用而生长成椭球状。
A droplet of water on a hydrophobic surface may form a nearly perfect spheroid due to surface tension.
水滴落在疏水表面上时，由于表面张力作用可能会形成近乎完美的椭球形。
The reflection of radar waves from a non-spherical object such as an oblate spheroid can make target identification more complex.
雷达波从非球形物体（如压扁的椭圆体）反射回来时，会使目标识别变得更加复杂。