这些圆碟会发射出能量的光旋，它们其实不是圆碟状而是螺旋形的，但看起来外像是圆碟一样。

The discs emit energetic spirals. They are truly more spiral than disc, but they do appear disc- like when viewed.

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左旋分子就是使偏振光发生左(即逆时针方向)旋的分子。

A left-handed molecule is one that causes polarised light to rotate to the left (ie, anticlockwise).

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因此，它们在性质上的唯一区别应该可通过观测两种香芹酮的气味和旋光仪中旋光度的符号而得知。

Hence, the only difference in properties one should observe for the two carvones are the odors and the signs of rotation in a polarimeter.

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