常見例句雙語例句Precambrian geology is one of the major research fields of earth sciences.前寒武紀地質(zhì)學是地球科學的主要研究領(lǐng)域之一。In resent decades the important progress on Precambrian geology research in northwest China bas been reviewed.廻顧了我所近十多年來對西北區(qū)前寒武紀地質(zhì)研究工作所取得的重要進展。 返回 precambrian geology