When measuring, when the measured water sample into a specific reagent, water would quickly color.

测量时，当被测水样放入特定试剂时，水样会迅速显色。

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When measuring, when the measured water sample into a specific reagent, water would quickly color.

测量时，当被测水样放入特定试剂时，水样会迅速显色。

youdao