Computer Automated Test System计算机自动测试系统 Computing: the Australasian Theory Symposium计算:澳大利亚理论研讨会 Comprehensive Analytical Test System综合分析试验系统 Citizens for an Alternative Tax System公民对于另一个税收制度 Cable Transfer Splicing纤缆转换连接 Communications and Tracking System通信和跟踪系统 Centre for Advanced Television Studies高级电视研究中心 Computer Aided Teaching System计算机辅助教学系统 Center for Applied Thermodynamic Studies运用热力学研究中心 Center for Advanced Television Studies电视研究中心为先进 Canadian Auxiliary Territorial Services加拿大的辅助领土的服务 Customer Access Terminal System客户访问终端系统 Cheap Access to Space (Space Frontier Foundation)便宜的存取到空间(空间前沿基金会) Concurrency Analysis Tool Suite并发分析工具套房 Cost Accounting Tracking System成本会计的追踪系统