高速下行分组接入（HSDPA）和演变数据优化（EV-DO）等3G的最新加强技术进步迅速。
And the latest enhancements of 3G technology, such as HSDPA and EV-DO, are improving fast.
ATM技术综合了电路模式和分组模式的优点，为各种业务的综合接入和信息的高速传输提供了技术基础。
The ATM synthesize the advantage of circuit mode and package mode and base technology foundation for synthetic access of various multimedia service and high transport of information.
高速下行分组接入(HSDPA)作为WCDMA的增强技术，大大提高了下行数据速率。
As an enhanced technology of WCDMA, HSDPA has greatly increased the transmission rate of downstream data.
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