The dose of testing agents must be precise.

试验药物剂量必须精确。

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The assembling of the parts of a watch must be precise.

一块手表零件的组装要十分精细。

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The description must be precise in order that it is ruled by conventions which guarantee the uniformity of the approach to the figures.

为了将原文档中的图形和不规范的、即兴发挥的描述转换成能精确、简便反映图形的计算机代码，必须创立描述性的、系统的词汇标准。

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Section 1031 exchanges must be executed on a precise, tight schedule.

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The economy is undoubtedly in better shape as a result of two rounds of quantitative easing, yet investors must be wondering exactly how precise this strategy is.

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However precise Travers must be, this is also very public work.

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