The meteorological representative error is the main source of EDM error, as well as the main obstruct to realize the nominal accuracy of the precision electronic tachometer also.

气象代表性误差是光电测距的主要误差来源，也是实现精密全站仪标称精度的主要障碍之一。

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Results of the study reveal that the nominal and real exchange rates bear a long run relationship (cointegrated), while the error correction results confirm short-run deviations in the relationship.

研究结果表明，名义汇率和实际汇率都承受长远的关系(协整关系)，而纠错的结果证实短期存在偏差关系。

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And the tendency for this kind of systematic error is exactly why we need an objective and predictable monetary policy like nominal GDP targeting.

FORBES: The Swing of the Monetary Pendulum