So the Earth is an inertial frame of reference, if you go in a train relative to the Earth at constant velocity, you're also inertial.

所以,地球是一个惯性参考系,如果你坐在相对于地球匀速运动的火车里,你也处于惯性状态

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Risk awareness relative to the reference index has become paramount among fixed income players and arguably a source of alpha in and of itself.

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Instead, the relative shares in the deal were struck by reference to both banks' share-price trading range over the past year.

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Different organizations, ranging from the Bowles-Simpson Fiscal Commission to the House Budget Committee, have considered this current policy baseline to be the appropriate reference point, since it measures changes relative to the status quo, rather than the mix of expiring provisions and policy changes that would likely never be implemented.

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