使用一个投影仪和很多行水滴发射器，一个可以显示文字，视频和互动游戏的多层显示就产生了。
Using a projector and rows of water drop emitters, a multi-layer display that can be used for text, videos, and interactive games is created.
投影产生的服务会指定被投影的企业(而不是被查询的企业)的businesskey(企业键值)。
Services which are projected will specify the businesskey of the business they are projected from, rather than the business being queried.
通过将两个空间交织在一起，一个知识抽象领域产生了，一个人能轻松的从感知空间移动到投影空间。
By having the two Spaces intertwined, an abstract field of knowledge is formed, one could easily move from the perception space to the projection space.
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