Postmodern Human knowledge is founded on (has evolved from) a Science which studied the motion of particles and their forces in Space and Time (Metaphysics of Space and Time).

后现代主义的人文知识是建立在粒子运动和时空力学的基础上(时间与空间的形而上学)。

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That, in turn, raises questions about what the void might be. Stripped of all matter, forces and fields, would space and time exist?

这种说法反过来对空穴的本质提出了疑问：在剥离掉一切物质，引力和场之后，空间和时间还会存在吗？

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So whenever you know the potential as a function of space, you can always find the three components of the forces in the three orthogonal directions.

因此不管势能受空间，位置的影响是多少，你总能发现力在，空间三个垂直方向的，分力。

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In the news release, the militants said they carried out the operation in Algeria because it allowed French forces to use its air space in attacking Islamist militants in Mali.

CNN: STORY HIGHLIGHTS

The news release said they chose to carry out the operation in Algeria because the country's president, Abdelaziz Bouteflika, had allowed French military forces to cross Algerian air space in attacking Mali.

CNN: STORY HIGHLIGHTS

The militants said they carried out the operation because Algeria allowed French forces to use its air space in attacking Islamist militants in Mali.

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