该书本身还以一种更为直接的方式引出了时空问题。
The book itself gives rise to temporal and spatial issues of a more immediate kind.
文章首先探讨了历史上教育技术的时空问题,然后分别分析了教育技术学若干时间问题和空间问题;
This paper probes into space-time issue of education technology in history at first, further analyses some time issue and spaceissue of educational technology respectively.
也许正是由于人们总在思考怎样用一个统一时间把不同地方的时间同步化的问题,才激发了爱因斯坦的灵感,产生了相对论,彻底统一了时空问题。
Thinking about how railway time required clocks in different places to be synchronized may have inspired Einstein to develop his theory of relativity, which unifies space and time.
When we do relativity, we'll be dealing with vectors in space-time and we'll find that different observers disagree on what is this and what is that.
我们学习相对论的时侯,会涉及到时空矢量的问题,我们会发现观测者们对于观测的结果,有着不同的看法
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