而在实际中，技术进步是随时间加速的，并不呈现中性特征。

However, in fact, technical progress is accelerated with time and doesn't appear neutral.

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除此而外，科学工作者还发现中性特征方面的另外一种遗传偏移。

Scientists have found another kind of genetic drift in neutral traits.

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中性特征虽然使一个生物有别于另一生物，但是这种差异并不影响到该属种的生存机会。

These traits make organisms different from one another, but the differences do not affect the species' chances of survival.

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