SK Telecom Co. said subscribers can pay 3, 000 won (US.50) to download a sound wave that is inaudible to human ears but annoys mosquitoes within a range of three feet.

韩国鲜京电讯公司表示，定制此项服务的用户只需花3000韩元(合2.50美元)便可下载一种声波。 这种声波可以在三英尺的范围内驱赶蚊虫，而人耳却听不见。

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SK Telecom said subscribers can pay 3,000 won (US.50) to download a sound wave that is inaudible to human ears but annoys mosquitoes within a range of three feet.

韩国鲜京电信(SK)表示定制用户可以花费3000韩元(合2.54美元)下载一种声波，这种声波人耳察觉不到，但可以在3英尺范围内驱赶蚊虫。

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On the bases of analyzing triangle wave form modulated LFM, the method of using DDR (Dual Channel Directional Doppler range) technique to eliminate the influence of speed to range is presented.

在分析三角波调制的线性调频信号的基础上，提出了用DDR技术消除速度对测距的影响方法。

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Earlier this year, areas in the Pentland Firth and around Orkney were leased to seven companies, which aim to generate enough electricity to supply 750, 000 homes by 2020 from a range of wave and tidal devices.

BBC: Pentland Firth tidal project set for development

Social media training is quickly becoming mandatory for an ever-growing range of companies, far surpassing the first wave of IT firms that rolled it out two years ago, like Dell, Intel and IBM.

FORBES: Social Media Training Is Now Mandatory: Five Ways To Make Sure Your Company Does It Right

The party debated a wide range of issues over the weekend, from the development of wave energy off the west coast of Scotland to a call for the War Crimes Commission for the former Yugoslavia to report on the feasibility of prosecuting KLA leaders.

BBC: Conference hears exams call