7 are processed, the PSD of Earth free oscillation is obtained.

7级大地震数据进行处理，获得地球自由振荡的功率谱密度。

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The earth free oscillation can be used to constrain structure of the earth interior, including velocity, discontinuity as well as density distribution.

用地球的自由振荡研究地球内部结构、速度间断面、密度分布等具有射线理论不可替代的优点。

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The free people of Earth.

人间自由自在生活的人们。

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Companies like venture-backed NovaTorque have produced cleverly designed high-performance rare-earth-free electric motors.

FORBES: Tech's Mineral Infrastructure - Time to Emulate China's Rare Earth Policies

We can talk to anyone instantly on earth for free.

FORBES: Facebook's Future In Content And Advertising

On the lam in America (his second-in-command, played by Ben Kingsley, is out to get him), Aladeen becomes friends with a vegan activist, Zoey (Anna Faris), who runs the Free Earth Collective, an organic-produce store in Brooklyn.

NEWYORKER: The Dictator