该模型是不精确的。

This model is not accurate.

youdao

经济学是一门不精确的科学。

Economics is an inexact science.

《牛津词典》

预报是门不精确的科学。

Forecasting was an inexact science.

《柯林斯英汉双解大词典》

Our temperature probably fluctuates during the day a little bit anyways, it's not very accurate. And similarly, the boiling point, defining that at a 100 degrees Celsius well that depends on the pressure.

这就不太精确,我们的体温一天之中，会有高低的变化，这一定义不够精确,类似的,我们把水的沸点定义为。

麻省理工公开课 - 热力学与动力学课程节选

But when you start doing scientific research or financial work, imprecision and rounding errors start to add up.

但如果你碰到涉及科学研究,或财政方面的项目时，不精确度,和错误就会累加。

哈佛公开课 - 计算机科学课程节选

There are precise technical reasons why these are the way they are, but let me try to cut to the chase here.

这里有些精确的技术原理,这些音为何会和谐与不和谐,让我开门见山地说吧

耶鲁公开课 - 聆听音乐课程节选