boulder clay 泥砾土 ; 冰砾泥 ; 漂砾土
Hessle boulder clay 赫塞尔泥砾
chaotic boulder clay 混杂漂砾粘土
boulder clay soils 泥粒土壤
red boulder clay 红色泥砾
glacial boulder clay 冰川粘土
boulder r clay 泥砾土
clay boulder 冰砾泥
N an unstratified glacial deposit consisting of fine clay, boulders, and pebbles 冰砾土 → see also till
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