管理学 服务质量 释 quality of service 服务质量 用于衡量使用一个服务的满意程度的综合指标。简称QoS。 理学 软件服务质量保证 释 service quality 服务质量 服务感知（P）和服务期望（E）的差。
网络与数据通信 协议体系与组成结构 释文 quality of service, QoS 服务质量
- historical geography
- historical geography information system
- historical geomorphology
- historical idealism
- historical indeterminism
- historical institutionalism
- historical instruments
- Historical Journal
- historical knowledge
- Historical Lessons
- Historical Linguistics
- Historical Linguistics Research
- historical map
- historical materialism
- Historical Materials of Chinese Contemporay Drama
- historical materials of Chinese earthquakes
- Historical Materials of Chinese Fiction
- Historical Materials of Fujian Opera
- Historical Materials of Half-Century of Chinese Drama Movement
- Historical Materials of Modern Literature
- Historical Materials of the Operatic Circle in Beijing during the Qing Dynasty
- Historical Materials on Forbidden and Destroyed Novels and Operas of Yuan, Ming and Qing Dynasties
- Historical Materials on Operatic Genres of Shandong Province
- Historical Materials on Peking Opera in Modern China
- historical methodology