There are complex relations between media taste and those, changes of media vehicles, special structures of time and space and status of social stratification.

载体形式的嬗变，特定时间与空间结构，以及社会分层状态，都与媒介趣味的存在构成复杂的联系。

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Aesthetic activity is a kind of creation based on multi-level relations as a whole, that is, the levels of aesthetics in subject, object, time and space, and historical illuviation.

审美活动是审美主体层、审美客体层、审美时空层、审美历史积淀层等多层面整体关系的创造；

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Synchronized multimedia technology refers to the combination of multiple media according to certain space-time relations.

多媒体同步技术指多种媒体按照一定的时空关系进行合成。

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RWM's members have left in the past year, alleging that the committee was focusing on public relations at the expense of hard science and wasting time on outlandish options such as firing waste into space.

ECONOMIST: Nuclear waste