You'd have to know what pigments he used, in other words, what ingredients he used to make different colors of paint, because the ingredients used in paints and binding agents have changed over time.

你要知道他使用了什么颜料，换句话说，他用了什么原料来制造不同颜色的油漆，因为油漆中使用的原料和结合剂都随着时间的推移而改变。

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The thing we consider as “all possible colors” produced or emitted in our monitors, printers, other displays and digital imaging devices are what we call, or can be found, in an RGB color space.

这些我们所认为的“所有的颜色”从我们的显示器，打印机和其他数码影像设备发出，并且它们都可以“RGB色彩空间（这 ..

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We can find out in the same way what other colors bees can see.

我们用同样的方法还可以发现，蜜蜂是能够认出其他哪些颜色的。

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