cycloid

常见例句

雙語例句

And so, the cycloid is the trajectory of this moving point.
擺線就是這個運動點的軌跡。
So, if you wanted to know how long ; an arch of cycloid is, you have this nice-looking curve; how long is it?
如果你想知道一個擺線有多長,這是一條很漂亮的曲線;,這有多長？
A cycloid is something that you can actually see sometimes at night when people are biking If you have something that reflects light on the wheel.
實際上，你們可以在夜晚看到擺線,如果有人騎著自行車,輪子上又有反光的傚果的話。