这两个系统实际上是概念模型。

The two systems are, at bottom, conceptual models.

《柯林斯英汉双解大词典》

最好对两个系统使用类似的硬件。

Similar hardware for the both systems is preferable.

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我们有两个系统，如图2中所示。

We had two systems, as illustrated in Figure 2.

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And Pauli says no two electrons in a given system can have the entire set of quantum numbers identical.

而泡利认为在一个给定的系统内,没有两个电子有完全相同的量子数。

麻省理工公开课 - 固态化学导论课程节选

So now I have my first of my two slopes, in terms of something that's related to my system the heat capacity of the system.

好，我们现在得到了，两个微分式中的一个,它等于与系统密切相关的一个量。

麻省理工公开课 - 热力学与动力学课程节选

Then we're going to talk about two physiological systems just briefly, where cell communication sort of dominates the behavior of the organ.

然后我将简要地讲到两个生理系统,主要是讲细胞通讯控制器官活动的方式

耶鲁公开课 - 生物医学工程探索课程节选