The computation of nutation series and the estimation of the earth orientation parameters (EOP) make use of an intermediate pole.

章动序列计算和地球定向参数测定需要一个中间的天球参考极作参照。

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The improvement on solving Earth Orientation Parameters (EOP) model is introduced. The improved model is more conformable to high precision of SLR data and is used in multi-arc method.

详细介绍了与SLR观测资料的高精度相适应的解EOP模型的改进，并且在复弧法中使用这个改进模型。

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