This common method in the planet-hunting world, called radial velocity, requires extremely precise measurements to detect a planet's gravitational pull on a nearby star.

这一行星寻找领域内的常见手段叫做径向速度法，需要极度精确的数据测量才能检测到行星对附近恒星的引力作用。

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The radial velocity method, which looks for changes in a star's velocity toward or away from Earth triggered by a planet's orbit around that star.

径向速度法，即观察某颗行星环绕恒星的轨道所引起的恒星相对地球来往的速度变化。

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The cost is high and the error is big in volumetric flow measurement method and velocity measurement.

容积式流量测量方法和速度式流量测量方法存在费用高，误差大的缺点。

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The vast majority of exoplanets have been discovered using the radial velocity method.

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