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He says the group depends on satellites , doppler radar and hundreds of rain gauges across the country .

他说，该组织依赖于卫星、多普勒雷达以及遍布全国的数百个雨量计。

Next year 's model will have a doppler sonar to help it avoid high-speed collisions with unsuspecting swimmers .

明年的型号将配备多普勒声纳，以帮助避免与未察觉该设备的游泳者发生高速碰撞。

India 's government is beginning to act , by setting up new doppler radar stations to track weather systems over mountains .

印度政府已经开始行动了，现在它们正在设立新的多普勒雷达站，以便于在群山之间追踪天气系统。

This exploits the doppler effect familiar when a siren changes pitch as the fire engine on which it is mounted speeds past you .

这种方式利用的是多普勒效应原理当消防车从你身旁一闪而过时，上面装着的警报器的音高就会发生改变，这点大家很熟悉。

Analysis of the characteristics of transcranial doppler in brain death children .

小儿脑死亡的经颅多普勒超声特点分析。