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Method Phenol-sulfuric acid colorimetric analysis is employed.
方法采用苯酚-硫酸比色法。
youdao
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A design of the meter was given according to the principle of colorimetric analysis.
该仪器是根据比色的原理而设计的。
youdao
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A design of the meter was given according to the principle of colorimetric analysis.
该仪器是根据比色的原理而设计的。
youdao