Out of fresh milk powder ratio is more than a decade, and 2563 mg / kg milk powder is equivalent to 256 mg / kg fresh milk. 100 mg, 10 mg, and so on will be divided by ten.

• 鲜奶的出粉比例是十比一，2563毫克/千克奶粉相当于256毫克/千克鲜奶。100毫克，10毫克等等就要除以十。