Calorific value of poor quality coal can be determined by addition of benzoic acid as standard, which can enhance the sample to burn out.
测定劣质煤的发热量时，在煤样中加入标准苯甲酸，帮助样品燃烧完全。
Calorific value of poor quality coal can be determined by addition of benzoic acid as standard, which can enhance the sample to burn out.
测定劣质煤的发热量时，在煤样中加入标准苯甲酸，帮助样品燃烧完全。
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