By particular vocalizing techniques, one singer utters two simultaneous voice parts, giving rise to a rare harmonic resonance.

它运用特殊的声音技巧，一人同时唱出两个声部，形成罕见的多声部形态。

youdao

Under the infrastructure operation mode of IEEE 802.11, for N simultaneous voice calls, downlink traffic from AP is much heavier than uplink traffic from each station.

在IEEE 802.11的基础结构操作模式下，对于N路语音通话，AP的下行链路流量要远大于由每个站点出发的上行链路流量。

youdao

This makes it possible to enjoy a variety of feature-rich wireless multimedia services, and it gives you the advantage of offering simultaneous voice and data services.

这使得人们有可能享受功能丰富的无线多媒体服务品种，它给你提供了同步语音和数据服务的优势。

youdao

You can do simultaneous voice and data, so if I'm on the phone, I can still browse the Web.

NPR: Google's Android Makes Phones Act Like PCs

The simultaneous voice and data offered by UMTS is pretty cool, but what we really care about is pulling down bits just a little faster than what EDGE has to offer.

ENGADGET: A few days with the Nokia N75 Mobile

The two giants actually implemented nearly simultaneous pricing strategy changes a few months ago, forcing unlimited voice and texting to all new smartphone subs.

FORBES: US Consumers Need Softbank To Buy Sprint