Karst collapse is controlled by many factors, so the associated relations between collapse and influence factor is the key to collapse prediction.

岩溶塌陷的产生受多种因素影响，塌陷预测的关键是找到各种影响因素与岩溶塌陷的关联关系。

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It has been proved that alteration of the tumor-associated genes is an important factor playing key roles in the generation, progress and prognosis of tumor.

众多肿瘤相关基因的变化，已证明是决定肿瘤形成、演变及结局的重要因素。

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It has been proved that alteration of the tumor-associated genes is an important factor playing key roles in the generation, progress and prognosis of tumor.

众多肿瘤相关基因的变化，已证明是决定肿瘤形成、演变及结局的重要因素。

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