第三部分，自主学习在初中教学中应用的必要性与可行性分析。
The third part: Analysis about independent study in junior middle school teaching application necessity and feasibility.
第二部分：税收征管引入ISO 9000族标准的必要性与可行性分析。
Second part: Analyze the necessity and feasibility of introducing ISO9000 clan standard into tax collection and management.
文中首先对设备管理的现状及其重要性进行了分析，分析实现设备管理信息系统的必要性与可行性。
In this paper, I first analyzes the current situation of equipment management and its importance, and proposed its necessity and feasibility.
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