VoIP adopts the switch technology which is completely different compare with traditional telephone, the VoIP studied in this thesis is based on the H. 323 protocol.

IP电话采用了与传统电话截然不同的交换技术，本论文研究的IP电话是基于H。323协议的IP电话。

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We integrate the switch gear cabinet part and rectifier part besides the functions of switch cabinet this design also has rectifying control functions on solid-state H. F. welders.

将开关柜与整流部分实现一体化设计，除完成开关柜功能外，还具有固态高频焊机的整流控制功能。

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Still, Mr. Streeter said winning this case "is going to be an uphill climb for H-P, " since California courts typically frown on agreements that limit employees' ability to switch companies.

WSJ: H-P Sues Hurd After Oracle Appointment