bill clearing meaning in English

票据清算

Then three major object - oriented middleware technologies have been discussed , including com / dcom / com + , j2ee and corba . the architecture , interaction between client and server and system - level service provision of them are discussed and compared . acs , the application control system , is an middleware product developed for international billing clearing system of china mobile roaming clearing house
论文首先介绍了中间件的基本知识,然后讨论了三种主流的面向对象中间件技术: com / dcom / com + 、 j2ee和corba ,论文探讨和比较了它们的基本框架、客户/服务器对象交互过程以及系统级服务的提供。