When you pick up a virtual object, the center of mass of that object and the center of mass you feel in your hand have some real separation.

当你拾起一个虚拟的物体，物体的质心和质心在手上的感觉有些分离。

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Angular momentum for particles, separation of center-of-mass and relative coordinates, effective energy diagram.

微粒的角动量，质心分离以及相对坐标系，有效能量图。

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In this paper, three novel fuzzy clustering models are proposed based on the principle of cluster center separation.

根据聚类中心分离原则提出了三个新的模糊聚类模型。

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This is the separation measured from the center of the sodium nucleus.

这就是分离,从钠核中心开始算。

麻省理工公开课 - 固态化学导论课程节选

So, for example, if I have a sodium ion over here, and I have a chloride ion over here, where the distance from center to center r I'm denoting as r, this is nucleus to nucleus separation.

所以，比如这有一个钠离子，和一个氯离子，它们中心与中心间的距离,我把它设为，这是原子核和原子和的间距。

麻省理工公开课 - 固态化学导论课程节选

But the schools on the base remain a strong center for families that often experience separation.

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Kelantan, for instance, is governed by the Islamic Party PAS, and has a long history of opposition to the center, including a little known challenge in the courts that sought separation from the Malaysian Federation when it was formed in 1963.

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Researchers at the Cornell University Nanobiotechnology Center are combining RT-PCR with a nanofluidics-based system for separation and identification of genetic material from different organisms.

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