计算臭氧平缓平均值

yuzixiang

2020-05-19 e25c689888a0dd80d07ffc4e4a45bd290b3d010c

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package com.moral.mapper; 
 
import com.moral.common.mapper.BaseMapper; 
import com.moral.entity.Density; 
 
public interface DensityMapper extends BaseMapper<Density>{ 
     
}