当然，前提是物体的对称轴存在。

And, of course, that only works if the solid has some axis of symmetry.

本文讨论周期函数的对称轴、对称中心等有关问题。

This paper mainly talks about the symmetric line and the symmetric centre of the periodic function.

单极感应是轴对称磁体绕其对称轴转动时产生的一种特殊的电磁感应现象。

Unipolar induction is a special electromagnetic induction phenomenon which occurs when a cylindrical magnet rotates around its symmetrical axis.

分形单元具有三个对称轴，比以前文献中提到的十字交叉形单元具有更好的圆极化特性。

Y-fractal element has three symmetrical axils, so this kind of element has better circularly polarized character than cross dipole element that has two symmetrical axils.

以足球城为对称轴，与矿渣堆对称的地方叫Diepkloof，是组成索韦托镇的定居点之一。

On the opposite side of the slag piles from Soccer City is Diepkloof, one of several settlements comprising Soweto.