system preferences中文什么意思

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The class provides a series of static and abstract methods to work with one of the two sets of preferences : one for user preferences and one for system preferences
这个类提供了一系列静态和抽象方法来操作两套首选项（其中一套是用户首选项，另一套是系统首选项）中的其中一套。
The subsidiary system of assembly process design has assembly flow diagram design , assembly process card design , professional technology rules design and system preference modules , one module is independent in function but related each other , can transfer its design data to others , to realize the integration and intelligence
装配工艺设计子系统具有装配流程图设计、装配工艺过程卡设计、专业工艺规程设计、系统配置等功能模块。各功能模块既相对独立、完成特定的设计功能，又相互联系、紧密配合，可将本模块的设计信息和数据自动传递给其它功能模块，以实现各功能模块的集成化和智能化。

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