因为有镜头的变化，为了便于制作和最大限度地模拟出三维空间的视觉效果，我们需要分层作业。
Because there are changes in the lens, in order to facilitate the production and to maximize the simulated three-dimensional visual effects, we need layered operations.
虽然DataStage作业设计很适合于关系型数据，但程序集很适合于分层数据。
While DataStage job design is well suited for relational data, the assembly is well suited for hierarchical data.
施工升降机是用于分层输送各种建筑材料和施工人员的高空作业设备。
Construction elevator is an equipment for high-altitude operations used for layered transporting all kinds of building materials and construction personnel.
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