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mineral conditioner Any naturally occurring inorganic substances with a definite chemical composition and usually of crystalline structure, such as rocks, which are used to stabilize soil, improving its resistance to erosion, texture and permeability
environ. 矿石土壤改良剂 (任何具有确定化学成分的天然无机物,通常是晶体结构,如岩石,可用来使土壤稳定,改进其抗腐蚀、质地和渗透性的能力。)