... burn-out point 烧毁点 burn-out quality 烧毁含汽率 burn-out rate 烧断率，烧毁率 ...
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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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