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
- draining south and supplementation north method
- drain pump house and sump
- drain regulating valve
- drain valve instrument
- drain water pipe of boiler
- drain water seal
- Drakensberg
- Drake Passage
- Drake's Well
- Drak Yerpa Dongkuqun
- DRAM
- Drama
- drama
- drama-actor’s training
- Drama and Film
- Drama and Film Monthly
- Drama and Film Training Course of Jinxing Film and Drama Company
- Drama Association
- Drama class
- Drama club
- Drama College The Hong Kong Academy for Performing Arts
- drama crisis
- Drama Department Lu Xun Literature and Art University
- Drama department People's Liberation Army Academy of Art
- Drama Department, School of Arts, National Beiping University