制造活动所需的零件信息通过语义层提供。
The part information which are required by manufacturing activities are provided by the semantic information.
软件开发是不同于生产活动或者制造活动的。
Software development is not a production or a manufacturing activity [Reves92].
了解各种食物的微机体，以及他们对食物的败坏、毒化、以及制造活动的重要性与控制。
To give an understanding of the types of micro-organisms associated with food; their significance and control in food spoilage, food poisoning and food manufacturing operations.
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