RESULTS The method is accurate and easy to operate, and coefficient of variation is small.
结果该方法变异系数小，准确度高，操作简便易行。
This method has better accuracy, and its variation coefficient is 6.0 %.
该方法有较好的精密度，变动系数为6.0%。
This method has better accuracy, and its variation coefficient is 6.0 %.
该方法有较好的精密度，变动系数为6.0%。
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