依主成分分析结果，在孢粉分析时各性状指标按重要性依次为花粉形状、极轴长、赤道轴长及萌发沟与极轴长之比值等。
The principal component analysis result shows that the most important factor is pollen shape when dealing with the pollen character, then P; E; L/P and so on.
如圆锥(圆柱或平面)轴位于赤道平面内，则成为横轴。
If the axis of the cone (cylinder or plane) lies in the plane of the equator the aspect is transverse.
由于地球是扁球体，绕极轴惯量矩最大，而绕在赤道面内的轴的惯量矩最。
Because of its oblate shape, the moment of inertia of the earth is a maximum about the polar axis and minimum about an axis in the equatorial plane.
应用推荐