长羽毛

But there is another possibility as well, said Mark Norell, curator of paleontology at the American Museum of Natural History: It is entirely possible that Juravenator did have feathers, but they simply failed to fossilize.

美国自然历史博物馆的古生物学家马克·诺莱尔还提出了另外一种说法，即完全有可能Juravenator的确长有羽毛，但是这些羽毛却没能形成化石。

But there is another possibility as well, said MarkNorell,curator of paleontology at the American Museum of NaturalHistory:It is entirely possible that Juravenator did have feathers,butthey simply failed to fossilize.

美国自然历史博物馆的古生物学家马克·诺莱尔还提出了另外一种说法，即完全有可能Juravenator的确长有羽毛，但是这些羽毛却没能形成化石。

But there is another possibility as well, said MarkNorell,curator of paleontology at the AmericanMuseum of NaturalHistory:It is entirely possible that Juravenator did have feathers,butthey simply failed to fossilize.

美国自然历史博物馆的古生物学家马克·诺莱尔还提出了另外一种说法，即完全有可能Juravenator的确长有羽毛，但是这些羽毛却没能形成化石。

They share many similar or the same featutes 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.

奔龙类是一类较为特殊的手盗龙类，它具有许多与始祖鸟Archaeopteryx甚至其它早期鸟类相似或接近的特征，主要表现在：叉骨U形与始祖鸟和孔子鸟类的相同，背肋钩状突在孔子鸟类和个别反鸟类中也存在，肩臼窝绝大部分指向侧方类似于始祖鸟，肩胛骨与乌喙骨间的夹角非常接近90°也和始祖鸟的相似，前肢从比例上讲显得较长，大的半月形腕骨使肘部能向侧方折过来，耻骨伸向后下方，距骨上升突与原始鸟类中的为同源结构，羽毛已有显著的分化且具备了现代羽毛的基本结构等等。

Feathers worn on a hat or a piece of jewelry in the shape of a plume.

戴在帽子上的长的羽毛或一件羽毛状的珠宝。

Penguin Any of various stout, flightless marine birds of the family Spheniscidae, of cool regions of the Southern Hemisphere, having flipperlike wings and webbed feet adapted for swimming and diving, and short scalelike feathers that are white in front and black on the back.

企鹅：一种居于南半球寒带地区的体胖且不能飞翔的企鹅科海鸟，长有适于游泳和潜水的鳍状翼和蹼足，腹部有小的白色鳞片状羽毛，背部有黑色类似状羽毛

Any of various stout, flightless marine birds of the family Spheniscidae, of cool regions of the Southern Hemisphere, having flipperlike wings and webbed feet adapted for swimming and diving, and short scalelike feathers that are white in front and black on the back.

企鹅一种居于南半球寒带地区的体胖且不能飞翔的企鹅科海鸟，长有适于游泳和潜水的鳍状翼和蹼足，腹部有小的白色鳞片状羽毛，背部有黑色类似状羽毛

Molting means losing old feathers and getting new feathers to replace them.

换毛意味着脱去旧的羽毛，长出新的羽毛。

New feathers push the old, worn feathers out of the bird's skin.

新羽毛从鸟的皮肤里长出来，替换已磨损的旧羽毛。

It would have looked similar in life to the fleet-footed predators that menaced a young girl on the beach during the opening scene of "The Lost World," the second Jurassic Park movie.

这具化石保存有异常完好的骨骼结构，因此可以将其明确地归入到恐龙家族中长有羽毛的一类。由于它所有的近亲都长着羽毛，所以考古学家认为Juravenator也是如此。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。