例句與造句

1. On the basis of the research of mutation induced by space flight in recent years , the basic theory of mutation breeding induced by space flight and its application were discussed
   摘要在綜述了國內(nèi)外近幾十年來空間誘變方面的研究成果的基礎上，初步論述了應用空間誘變技術進行航天育種的理論基礎和實踐可行性。
2. It's difficult to find theory of mutation in a sentence. 用theory of mutation造句挺難的