Precision measurements of this sort are fraught with difficulty and other sources of error may have crept in.

这一类精密测量总是有许多困难，一些人们未曾预料到的其他误差源可能影响结果。

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Normally when or 10 years ago, if an astronomer told you that he was making measurements to a precision of five parts in a million, you would just laugh.

通常在10年前，如果一个天文学家告诉你，他的测量精度是百万分之五，你只会哈哈大笑。

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Objective. To measure the accuracy and precision of such measurements in comparison with a standard method.

目的：通过与一种标准方法对比以评估这种测量方法的准确性和精确度。

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The Anatomy of a Cupcake is one in a growing number of recipe charts, many of which remove the precision and measurements of traditional recipes in favor of expressing their general form.

FORBES: The Anatomy of A Recipe