1.
Research on QoS in IP Network;
基于IP服务质量（QoS）的研究
2.
Research and Implementation of IP Network Quality of Service Technology;
IP网络服务质量技术的研究与实现
3.
Implementation for QoS of IP Over WDM on MPLmS;
MPLmS实现IP over WDM的服务质量
4.
Research and Implementation of QoS of IP Phone
IP电话服务质量改进方案研究及实现
5.
Simulation of IP-CME's QoS Based on NS-2
基于NS-2的IP-CME服务质量仿真
6.
Research on Implement of Quality of Service on IP Networks for Supporting Audio Services;
声信息在IP网络传输的服务质量的实现
7.
Research on the Quality of Service (QoS) Control Technology Based on IP Network
基于IP网络的服务质量（QoS）控制技术研究
8.
Research about Streaming Media on the IP Network Quality of Service Model
关于IP网络流媒体服务质量模型的研究
9.
Mechanisms and Algorithms for Mobility Management and Quality of Service Guarantee All-IP Based Mobile Wireless Networks;
全IP移动无线互联网中移动性管理和服务质量的研究
10.
IP/MPLS Flow Identifier and Service Quality Control
IP/MPLS流量标识与业务质量控制
11.
IP cache server
IP高速缓存服务机
12.
first class quality and first class service
一流的质量，一流的服务
13.
Quality of tour-guide service
GB/T15971-1995导游服务质量
14.
The post office aimed to improve its quality of service.
邮局锐意改善服务质量。
15.
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量.
16.
to adopt international standards and to improve the quality of both products and service
提高产品和服务质量
17.
The service has fallen off remarkably.
服务质量大不如前。
18.
Quality of service (QoS) provides the answer.
服务质量（QoS）就是答案。