求翻译：审查不断变化的结构和采矿业的聚合的水平、 特殊税收效率与公平的参数.经济租金的税基比目前的数量基础的特许权使用费会导致较小的税收扭曲。是什么意思？

Review of constantly changing the structure and aggregation level of the mining industry, the special tax efficiency and equity parameters. Economic rent tax base than the current number of based franchise fee would lead to smaller tax distortions.

Review of the changing structure of the aggregation and mining industry of the level, special tax efficiency and fairness of the parameters of the economic rent tax base than is currently the number of royalty fees will result in a smaller tax distortions.

The examination changes unceasingly structure and mining industry polymerization level, special tax revenue efficiency and fair parameter. The economic rent tax base can cause the small tax revenue distortion compared to the present quantity foundation charter working cost.

Review the changing structure and the level of aggregation of the mining industry, special tax efficiency and equity arguments. economic rent basis than the present number of base royalties and licence fees will result in smaller tax distortions.

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