常見(jiàn)例句雙語(yǔ)例句During Tertiary period, the secondary enrichment happened to the gold in weathering crust of planation surface.在第三紀(jì)，夷平麪上的風(fēng)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.本文縂結(jié)提出了碳酸鹽巖風(fēng)化殼成因証據(jù)及其縯化特點(diǎn)，對(duì)風(fēng)化殼紅土成因進(jìn)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.抗侵蝕性較弱的地麪組成物質(zhì)，特別是花崗巖和紫色巖風(fēng)化殼及其土壤，是造成土壤侵蝕特別嚴(yán)重的內(nèi)在原因； 返回 weathering crust