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

个设备之外，飞机机头还装有，机尾装有多普勒。

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

研究人员研发一种设备，可以利用低功率多普勒来解析用户心脏独特几何形状，以。

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

飞机还有，机头有，机尾有多普勒。

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

场风暴在多普勒已经有一周。

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可以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。

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年，天文学家使用多普勒观察水星，并直接测量它自转周期，他们大吃一惊：水星一天只有59个地球日，而不是88个。