With the advent of multi-channel mobile telephone systems, intermodulation interferences will become increasingly high, often resulting in serious impairments on communication.

随着多频道共用移动电话系统的出现，互调干扰将日趋严重，以致使在一定范围内严重影响通信。

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A person trained in this field may need to know how to set up and maintain telephone equipment, voicemail systems, fiber optic and microwave communication links, as well as mobile radio equipment.

在这个方面受过训练的人可能要知道如何和维护电话设备、语音信箱系统、光纤和微波通信线路，以及移动通信设备。

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The mobile telephone projects experiments show that the new method contributes to improving software development efficiency and increasing the quality of software systems.

手机软件项目实践表明新方法提高了软件产品质量和开发效率。

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This leapfrogging has already happened with telephone systems: Developing countries that lacked land-line telephone and broadband connectivity, such as India, made the leap directly to mobile systems rather than build out their land-line infrastructures.

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While few rural Africans have landlines, mobile telephone ownership is rapidly increasing, and companies such as Kenyan telecom provider, Safaricom, have already introduced systems that allow subscribers to transfer money via cell-phones.

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