38℃的红色紫砂土对电解质的选择性
Selectivity of red stone ware for electrolyte
为解决南方地区大面积风化紫砂土和新开荒的红壤土种草困难的问题，研制出复合型保水剂CP-。
In order to solve the problems of growing grass on purple soil and newly reclaimed red soil , a compound water preservation agent of CP ⅱ was prepared .
紫砂土