The protection of ground sources for domestic and drinking water shall be strengthened. 對生活飲用水地下水源應當加強保護。
The uncertainty of measurement for the determination of total hardness of drinking water by EDTA titration method was evaluated. 對乙二胺四乙酸二鈉滴定法測定生活飲用水總硬度的測量不確定度進行評定。
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