求翻译：分别取丹参酮ⅡA、丹参酮Ⅰ、隐丹参酮、二氢丹参酮对照品适量，精密称定，加甲醇溶解，配制成含丹参酮ⅡA 0.03 mg•mL-1、丹参酮Ⅰ0.04 mg•mL-1、隐丹参酮0.03 mg•mL-1、二氢丹参酮0.005 mg•mL-1的混合对照品溶液，置棕色瓶内，避光保存。是什么意思？

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Takes the salvia miltiorrhiza alkone separatelyⅡA, salvia miltiorrhiza alkoneⅠThe hidden salvia miltiorrhiza alkone, the dihydro salvia miltiorrhiza alkone comparison right amount, the precise name decides, adds the methyl alcohol to dissolve, compounds including the salvia miltiorrhiza alkoneⅡA 0.0

Respectively take Dan ketone ⅱ a,, and Dan ketone ⅰ, and hidden Dan ketone, and II hydrogen Dan ketone controlled products moderation, precision said set, plus methanol dissolved, preparation into containing Dan ketone ⅱ a, 0.03 mg · mL-1, and Dan ketone ⅰ 0.04 mg · mL-1, and hidden Dan ketone 0.03

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