By framing our coordinate system in terms of these two special basis factors, it raises a pretty interesting and subtle point.

通过用这两个特殊的基因子来构建我们的坐标系 它提出了一个非常有趣和微妙的问题。

This assumption is, however, obviously well founded in the facts, due to the circumstance that a change, which is not an all-round change, is beneficial to the special factors affected when it is upward and harmful when it is downward.

但是，这种假设显然是有事实根据的，因为一个变化不是全面的变化，向上时对受影响的特殊因素有利，向下时对受影响的特殊因素有害。