基本客户 meaning in English

primary client
primary customer
prime borrowers

Then it introduces the process of analysis and design of the citc pdm . at last the system based on c / s and b / s mode was developed . we use pb , vb and asp as the development tools , oracle8i as the database management system
系统的开发采用了c s结构与b s结构相结合的混合模式，采用pb作为基本客户端开发工具， vb作为组件开发工具， asp作为网页部分开发工具， oracle8i作为数据库管理系统。