In attempting quantitative quantum mechanical treatment of chemical bonds, approximations must be made . 在试图定量地用量子力学去处理化学键时，人们必须采用近似法。
Quantitative soil analyses have been accomplished by chemical gravimetric and radiotracer techniques . 污垢的定量分析在化学的重量分析以及放射性跟踪技术协助下，已能进行。
Although the approximate wave function is qualitatively useful, it is gravely lacking in quantitative accuracy . 虽然近似的波函数是定性地有用，然而它严重的缺少定量的准确性。
We do not imply that adequately measured quantitative characters will invariably yield high heritability estimates . 我们并不是说数量性状测定标准合适，就一定估算出高的遗传力。
From this simple but hard-to-interpret statement has evolved a much more quantitative and sophisticated set of criteria . 由这一简单而难以解释的叙述，已经发展成很多定量的和复杂的判据组合。
In order to express earthquake effects in a quantitative way, intensity scales were introduced as early as the 1870's . 为了以定量方式表达地震的各种效应，早在十九世纪七十年代就采用了烈度表。
The new engineering concept known as damage tolerance has been developed to provide quantitative guidance for this purpose . 一个新的工程概念即损伤容限正发展起来，为这个目的提供了定量的指导。
Even so since quantitative data were scanty and the photon so radical an idea it remained unaccepted by many . 虽然如此，由于定量的数据还不足，而光子又是这样激进的一个概念，很多人仍然不愿接受它。
A more difficult problem is the quantitative description of the secondary breakup of the initial spray by high velocity combustion gas . 一个更困难的问题是关于高速燃气使初始喷雾二次破裂的定量描述。
Results of this kind reinforce the need for caution in applying the quantitative rates obtained in the mouse to the problem of risk estimates . 这类结果说明，将小鼠试验所得的数值应用于人的危害估价时必须更加小心。
