However, current PAS has the disadvantages such as requiring a large amount of wiring, inconvenient system maintenance and inflexible area-dividing mode.
但是目前的PAS存在着布线量较大、系统维护不便和分区方式不灵活等缺点。
参考来源 - 基于低压配电网传输的公共广播系统(PAS)The software system is composed of conceptual design project evaluation module, index analytic module, product management module and system maintenance module. It is based on the scientific estimate index system and a great lot of equipment information.
该软件系统以科学的评价指标体系和大量的相关装备资料信息以依据,由概念设计方案评价模块、设计方案指标分析模块、论证成果管理模块、论证资源信息管理模块、系统维护模块等组成。
参考来源 - 装甲车辆概念设计方案评价指标体系建立与系统实现·2,447,543篇论文数据,部分数据来源于NoteExpress
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