求翻译：这些地区冻结孔施工时均采用富含化学外加剂的泥浆，故而固管封水用的缓凝水泥浆需根据造孔泥浆的特性来研制，而不能采用其他地区使用过的泥浆配方。是什么意思？

Freezing hole construction are used in these areas are rich in chemical admixture of mud, so fixing slow setting cement for pipe seal water required to development based on pore characteristics of mud, the mud formulation and cannot be used in other areas.