method of dilution multiple
method of dilution multiple
稀释倍数法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The method for determine sewage's chroma is method of dilution multiple. It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.
污水色度的测定一般采用稀释倍数法，该方法在用人眼判定稀释后的水样是否接近无色时容易引起误差。
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