常見例句雙語例句During Tertiary period, the secondary enrichment happened to the gold in weathering crust of planation surface.在第三紀,夷平面上的風化殼中的金經(jīng)歷了重要的次生富集作用;In this paper, the genetic evidence and evaluative feature of the weathering crust of carbonate rocks are presented, then, the genesis of laterite are discussed.本文總結(jié)提出了碳酸鹽巖風化殼成因證據(jù)及其演化特點,對風化殼紅土成因進行了討論。The low resistant erosion ability of ground substance, especially in granite weathering crust and purple rock and its soil are the inner causes of severe soil erosion.抗侵蝕性較弱的地面組成物質(zhì),特別是花崗巖和紫色巖風化殼及其土壤,是造成土壤侵蝕特別嚴重的內(nèi)在原因; 返回 weathering crust