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基礎(chǔ)科學(xué)

        Definition: Something shed by organism:a part of an organism that has been shed in anatural recurring process,e. g. an insect casing,a snake skin,or worm feces.鑄型zhù xíng生物遺體的內(nèi)外均被沉積物充填,其后遺體本身被地下水溶蝕,所留空隙又為其他物質(zhì)填充而形成鑄......（本文共 372 字）     [閱讀本文] >>