基本解釋生物巖英漢例句雙語例句Dune rocks in South China are formed by the cementation of island limesands and coastal bioclastic dune sands.華南沙丘巖由島嶼上的灰砂和含生物碎屑的海岸風(fēng)成沙丘物質(zhì)膠結(jié)而成。The rocks of the Poduan Formation are mainly intraclastic bioclastic grainstones formed in turbulent and agitated bank environments, and amount to about 2/3 of total thickness of the profile.坡段組主要由砂礫屑-生屑顆粒巖組成，約占全剖面的2 / 3。它們形成于水流激蕩的灘相環(huán)境。bioclastic rock更多例句