Only in the poleaxis theory, do the point and the line become the endogenetic variable and they form the two indispensable factors of constructing spatial structure.
只有在点—轴系统理论中，点、线才都是内生变量，是构建空间结构模型的不可或缺的两大要素。
2
The tilt of the earth's axis, that imaginary pole that runs through the center of the earth.
地轴是我们虚构的穿过地心的一个倾斜的直线轴。
3
The Earth spins on an imaginary line called an axis that runs from the north pole to the south pole, while also orbiting the sun.