The coffee grounds were steeped in a solution of potassium hydroxide, heated to 65 C (149 F) and stirred for 24 hours. The mixture was then dried.
将咖啡残渣浸泡在氢氧化钾溶液中，加热至65摄氏度（149华氏度）并搅拌24小时，然后将混合物烘干。
The influencing factor was studied quantitatively. The result showed that the amount of water was suitably controlled under 6% when making up the potassium hydroxide-enthanol standard solution.
对影响因素进行了定量研究，结果表明，配制氢氧化钾-乙醇标准溶液时，加水量宜控制在6%以下。
The influencing factor was studied quantitatively. The result showed that the amount of water was suitably controlled under 6% when making up the potassium hydroxide-enthanol standard solution.
对影响因素进行了定量研究，结果表明，配制氢氧化钾-乙醇标准溶液时，加水量宜控制在6%以下。
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