According to theory, there are countless electric dipoles created by virtual particles in any given volume of the quantum vacuum.

这个理论告诉我们，在任何给定体积的量子真空中都存在数不清的由虚粒子产生的电偶极子。

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Seen in the light of social identity theory, then, the boys in the experiment do have a reason to be selfish about the allocation of the virtual cash.

那么，根据社会认同理论，实验中的那些男孩确实有理由在分配虚拟货币的时候变得自私。

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The study subject of this thesis is that WEB-based interactive Virtual Reality System, carrying on research in two parts of theory and technology.

本文选择以“基于WEB的交互式虚拟现实系统”作为研究对象，主要进行理论与技术两部分研究。

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