The practical calculation formula of flow measurement is given. The system composition of flow measuring system and practical application areas are described concretely.

给出了实用流量测量的计算公式，具体阐述了流量测量的系统组成和实际应用的方法。

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The relativistic correction due to earth rotation for both terrestrial and satellite time comparison experiments via laser pulses has been discussed and a practical calculation formula is proposed.

同时还讨论了在地面和卫星的激光时间比对实验中由于地球自转效应的相对论改正问题，提出了一种实用计算公式。

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A practical formula and an example of calculation are also given in the paper.

并给出了实用计算公式与计算实例。

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