The task layer 任务层
task layer 任务层
layer task
层的任务
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Layer Model includes application layer, task layer, functional layer and physical layer.
层次模型包括应用层、任务层、功能层和物理层。
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The spread of computers through companies has added a third layer of complexity: the task of managing the information systems themselves.
ECONOMIST: Men and machines
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