最初，该理论能够用来说明水星独特运行轨道[译者注]和太阳光的弯曲，这两种情况是牛顿引力理论所无法解释的。
Originally, the theory was able to account for peculiarities in the orbit of Mercury and the bending of light by the Sun, both unexplained in Isaac Newton's theory of gravity.
我有一些相似的，也是一个弯曲的轨道。
I have something very similar, and that is, again, a curved track.
这就需要用产生一个力- - -称为马格努斯效应- - -的侧旋，以引发球轨道的弯曲。
This is done by applying side spin, which generates a force - called the Magnus force - that causes the ball's trajectory to bend.
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