In process colour printing, they are: magenta, yellow and cyan. They are called subtractive primary colours because each of these colour will absorb or subtract one third of the colours in the white light.是什么意思_In process colour printing, they are: magenta, yellow and cyan. They are called subtractive primary colours because each of these colour will absorb or subtract one third of the colours in the white light.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句