您要查找的是不是：
- duplex system; duplex telephony. 双工系统；双工电话。
- duplex telephony 双工电话
- Would you like a duplex or a mobile home? 你想要双层楼公寓还是活动房屋?
- Intranet Telephony: Will your LAN Replace Your PBX? 内部网电话：局域网会替代用户电话交换机吗?
- Telephony could give way to telepathy. 电子传感可能会让位给心灵传感。
- Pardon my ignorance, but what is a 'duplex'? 请原谅我无知，duplex 是什么呢?
- Shows how to implement a duplex contract. 演示如何实现双工协定。
- Study and Design of IP Telephony's. IP电话终端系统的研究与设计。
- The Telephony Service could not be contacted. 不能联系电话服务。
- Compound type duplex air release va. 复合式双口排气阀。
- Is vessel fitted with a radio telephony alarm? 船舶是否装有无线电话报警器?
- It was like a duplex, housing two families. 那是一个连排别墅，可以住两家人。
- Can Carriers Make Money on IP Telephony? 运营商能否依靠IP电话赚钱?
- Which of the connections can be full duplex? 哪一连接可能是完整的双三极管?
- Duplex valves for the offshore oil &gas markets. 用于海上油气市场的双阀门。
- IP telephony is a killer app of Internet. Internet产业的热点之一是IP电话。
- Kopf is manager of telephony practice at CDW. 科普夫是经理电话做法CDW的。
- Lite (1.5 Mbit/s) and SDSL (2.3 Mbit/s duplex) ? 对于大型和超大型企业提供宽带接入，完全支持现有的数据业务和租用线设备。
- Chand Double Air hardcover duplex home for sale! 昌德居双气精装复式出售！
- Telephony 3,1 kHz teleservice.Service description. 英文标题： Integrated Services Digital Network (idsn).
