Imagine now you can make the Doppler shift measurements of both stars.

假设现在你可以，对双星进行，多普勒顿移的测量。

youdao

If you have a binary system whereby both stars are visible so you get the spectrum of both stars, then you see the Doppler shift of both stars in the spectrum.

若存在一个双星系统，两颗恒星均看不见，你能得到双星的光谱，然后在光谱中看到，双星的多普勒顿移。

youdao

So now we have a situation that I just described earlier that you have the Doppler shift of both objects, and remember, I told you that you also get the masses.

正如我早先形容过的，我们知道二者的，多普勒顿移，记住，你们也知道，物质的质量，得到供体星和。

youdao

Rather than looking for the tiny Doppler shift of a bright star, in other words, Dr Cameron and his team were looking for the much larger Doppler shift of a much fainter planet.

ECONOMIST: Extrasolar planets

There is a doppler shift when the recipient is moving and this can be a significant issue.

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And since a moving object causes a tiny change (known as a Doppler shift) in the frequency of the reflected signal, Silent Sentry can also calculate how fast it is moving.

ECONOMIST: Remote sensing