Along with the sands, the plane also has radar in its nose, doppler radar in its tail.

除了这个设备之外，头还装有雷达，尾装有多普勒雷达。

Researchers have developed a device that uses low-powered Doppler radar to decode the unique geometry of a user's heart...

研究人员研发了一种设备，可利用低功率多普勒雷达来解析用户心脏独特几何形状，。

The plane also has radar in its nose, Doppler radar in its tail.

上还有雷达，头有雷达，尾有多普勒雷达。

Unlike a tornado warning where Doppler radar can see the rotation and issue a warning before the tornado, an earthquake warning happens when the earth is already shaking.

不像预测龙卷风多普勒雷达可观测气旋运动并在龙卷风形成之前预警，地震预警则是从地球开始撼天动地之后才发出。

This storm's been on Doppler radar for a week.

这场风暴在多普勒雷达上已经有一周了。

However, in 1965, astronomers used Doppler radar to observe Mercury and directly measure its spin and they got a surprise: its day was only 59 Earth days long, not 88.

然而，在1965，天文学家使用多普勒雷达观察水星，并直接测量了它自转周期，他们大吃一惊：水星上一天只有59个地球日，而不是88个。