驱替过程是个传质、传热过程，包括多种随时间和空间变化的界面现象。
And the displacement process is a process of fluid mass and heat transfer, which refers to many interface phenomena changed with time and space.
交通流理论是研究在一定环境下交通流随时间和空间变化规律的模型和方法体系。
The traffic flow theory is a set of models and method frames which aims is to study evolvement laws of traffic flow in time and space dimensions under some conditions.
我们有一个理论，M理论或弦理论，认为自然界的常数，是钉在“场”里的，它们随时间和空间而变化。
And we have one theory, m theory or string theory, suggests that the constants of nature are pegged to fields that can vary across space in time.
地下水污染监测网的设计包括取样点在空间上的采样位置和时间上的取样频率这两方面的确定，其目的是为了准确刻画污染羽在含水层中随时间的变化状况。
The groundwater monitoring network design involves the determination of the sampling locations and sampling frequencies to characterize the contaminant plume in an aquifer over space and time.
它是一个复合向量，具有明显的空间分布的非均一性和随时间变化的非定常性。
It is a complex vector which have obvious heterogeneity of the distribution in space and a variability with time.
连环画就是一个这样的好例子，它在相邻空间上显示随时间推进的流和变化。
Cartoon strips are a good example of showing flow and change over time arranged adjacently in space.
连环画就是一个这样的好例子，它在相邻空间上显示随时间推进的流和变化。
Cartoon strips are a good example of showing flow and change over time arranged adjacently in space.
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