The relation between radon emanation rate and ore humidity is tested by the uranium ore model. The result shows that the radon emanation rate is reduced by a factor of 10 after uranium ore is sprayed with water. 通过铀矿石模型的氡析出率与湿度关系试验得知,向铀矿石表面淋水,可以使其氡析出率降低到原来的1/10左右。