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采用查询方式设计的电话计费系统,将低档微机改作计费主机,这种系统的显著特点是实现简单、功能灵活、经济性好。
The telephone billing system designed by means of inquiry changes the low-end microcomputer into a charging host. The obvious characteristic of such a system is that it is simple to implement, flexible in function and good in economy.