Color may also be modified by traces of iron and other metal salts and organic substances, for example cyanin is red in roses but blue in the cornflower.
此外一些微量的离子,金属盐以及其他的有机物质也可以改变其显色,瑰中显红色而玉米中显蓝色。
Color may also be modified by traces of iron and other metal salts and organic substances, for example cyanin is red in roses but blue in the cornflower.
此外一些微量的离子,金属盐以及其他的有机物质也可以改变其显色,瑰中显红色而玉米中显蓝色。
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