因牠们是深色的，所以不要喂饲彩色合成粮，给他们无色的。
They are hyper-chromatic, so don't feed them colored pellets, give them the natural ones.
通过实验，我们发现在经过无色散的ABCD系统时彩色光束的M2因子是不变的。
The chromatic factor M2 is found invariable while the laser beam propagates through the dispersion-free ABCD system.
通过实验，我们发现在经过无色散的ABCD系统时彩色光束的M2因子是不变的。
The chromatic factor M2 is found invariable while the laser beam propagates through the dispersion-free ABCD system.
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