1) origin and early evolution
起源与早期演化
1.
Recent paleontological and neontological studies on feathers and feather-like integumentary structures have improved greatly our understanding of the origin and early evolution of feathers.
近年来关于羽毛和羽状皮肤衍生物的研究极大促进了我们对羽毛起源与早期演化的理解。
2) Origin and Evolution
起源与演化
1.
Discovery of Pseudolarix from Lower Cretaceous Yixian Formation in Beipiao of Liaoning and its significance for origin and evolution;
辽宁北票早白垩世义县组松柏类金钱松属(Pseudolarix)的发现及其起源与演化意义
3) origin and evolution of magm a
岩浆起源与演化
4) early evolution
早期演化
1.
With the advent of some new techniques, the past several years have been a time of fascinating discoveries on the origin and early evolution of angiosperms.
近年来,被子植物起源和早期演化研究,由于手段和技术的更新,资料大量积累,取得了许多重要进展,成为植物学领域的一大热点。
2.
In the paper, the origin and early evolution of the Betulaceae were discussed according to the viewpoint of unity between time and space in the evolution of plant group and based on the studies in paleobotany, phytogeography and phylogeny.
根据植物类群演化的时空统一观点，利用古植物学、地理分布和系统发育三个方面的研究结果，讨论了桦木科植物的起源和早期演化，认为：最早的桦木科植物生活在晚白垩纪桑托期，起源于中国中部地区，起源之后，一方面较缓慢地向欧洲散布，并在古新世到达欧洲；另一方面向中国东北地区散布，并迅速扩散到北极地区，通过白令陆桥在白垩纪最晚期到达了北美。
5) origin of state and early state
国家起源与早期国家
6) Origin and evolution
起源演化
1.
The distribution, origin and evolution of Syringa;
丁香属植物的地理分布及其起源演化
补充资料：起源
1.事物产生的根源。 2.发源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条