Doppler shift

常见例句

Imagine now you can make the Doppler shift measurements of both stars.
假設現在你可以,對雙星進行，多普勒頓移的測量。
And so you get all this useful information in astronomy by making the Doppler shift measurements of binary systems.
你們可以得到所有,天文學中的有用信息,衹要對雙星系統進行,多普勒頓移。
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.
若存在一個雙星系統,兩顆恒星均看不見,你能得到雙星的光譜，然後在光譜中看到,雙星的多普勒頓移。

There is a doppler shift when the recipient is moving and this can be a significant issue.
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This is due to a Doppler shift—the same phenomenon that causes the pitch of an ambulance's siren to seem to vary as it passes a stationary listener.
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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.
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