primitive bird 中文意思是什麼
primitive bird
解釋
原始鳥類-
The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
奔龍類是一類較為特殊的手盜龍類（ maniraptora ） ，它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相似或接近的特徵，主要表現在：叉骨u形與始祖鳥和孔子鳥類的相同，背肋鉤狀突在孔子鳥類和個別反鳥類中也存在，肩臼窩絕大部分指向側方類似於始祖鳥，肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相似，前肢從比例上講顯得較長，大的半月形腕骨使肘部能向側方折過來，恥骨伸向後下方，距骨上升突與原始鳥類中的為同源結構，羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。 -
The metaphoric primitive totem, butterfly patterns for ideal happiness and bird patterns of life reproduction bring us into a mysterious world
隱秘喻意的原始圖騰、美好幸福的蝴蝶紋、生命繁衍的鳥紋，帶領我們步入神秘世界。 -
New advances in the study of the primitive bird confuciusornis
南澳島及其附近島嶼夏季鳥類的初步調查 -
It elaborates the biodiversity, natural ecosystem and important values for the protection of the northern part of ailaoshan national nature reserve in yunnan for both scientific research and observational location, mainly from several characteristics including special geographic position, abundant fauna & flora resources, integrated & primitive subtropical evergreen broad - leaved forest ecosystem as well as the vital passage for bird migration
從雲南哀牢山國家級自然保護區北段地區特殊的地理位置、豐富的動植物資源、完整而原始的亞熱帶常綠闊葉林森林生態系統以及重要的鳥類遷徙通道"打雀山"等方面，論述了該區域生物多樣性、自然生態系統及科學研究、觀測場所等方面具有的重要的保護價值。
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