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You can ask for a chemical analysis of your tap water.
你可以要求给你的自来水做化学分析。
《牛津词典》
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It is applicable for analysis of chemical waste water, sewage and river water.
适合于化工废水及污水、河水分析。
youdao
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It is applicable for analysis of chemical waste water, sewage and river water.
适合于化工废水及污水、河水分析。
youdao