In the recent spatial researches, distance perception has been a primary concern for understanding how human beings establishes a memory of location and navigates in an environment.

在空间知觉研究领域，距离知觉是理解人类空间表征和与空间导航的重要窗口。

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The greater the perception, the greater the distance, hence the difference.

感知越深，距离越远，差异也就越大。

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There may be all sorts of reasons that 'Windows 7' makes marketing sense because it allows Microsoft to distance themselves from any perception people have about Vista.

种种原因使得Windows7存在着营销上的优势 因为这样能帮助微软远离用户对Vista的不良印像.

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And one driver of that trend, says Gregory Guldner, director of the Center for the Study of Long Distance Relationships, is the perception that technology reduces the emotional separation of distance.

FORBES: Magazine Article

This would have eliminated the perception that Carnival was trying to distance itself from the disaster.

FORBES: How Apple And Carnival Can Right The Ship