比如说，一个英国的研究小组宣布，通过观察大脑中的血液流动，他们能够识别出计算机生成的虚拟环境中的主体。
For example, one British group announced that they could discern where subjects where in a computer generated virtual environment by looking at where blood flowed in their brains.
印第安那大学的研究人员创造了一个虚拟环境，在其中20到200人搜寻各自的理念。
The IU researchers created a virtual environment in which 20 to 200 people “forage” for ideas.
对虚拟环境中点到点的通视性检查算法进行了研究。
The intervisibility testing algorithm in the virtual environment that based on the LOS (line of sight) is researched on.
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