Observation accuracy is one of the most important factors in dam observation.

观测精度历来是大坝观测中最需要关注的要素之一。

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The key point is the checkout of the actual observation accuracy of the embedded instruments.

观测精度历来是大坝观测中最需要关注的要素之一。

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Based on a detailed analysis of error source, some measures for increase of observation accuracy have been suggested.

并较详细地分析了误差来源，提出一些提高观测精度的措施。

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And to one level of accuracy Keen is correct in this observation.

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The pair will soon begin an intense observation campaign that will pin down the variation in height across the globe to an accuracy of better than two metres.

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