为了保持在水中不至于沉底，尾部的顶端比底端向后延伸，沿着后端形成一个斜面，产生提力。
To help generate lift to keep midwater, the top of the tail extends farther back than the bottom, creating a slant along the back edge.
张福成发现，延伸至背部和尾部的纤维丝使得龙鸟看起来活像一块带有黄白条纹的理发店招牌。
Zhang found that the filaments running down its back and tail must have made the dinosaur look like an orange-and-white-striped barber pole.
特征是脸部和背部有延伸开来的深棕色的条纹，以及淡红色的尾部和棕色短耳。
Distinguished by dark brown stripes that run down both its face and back, a reddish rump and short brown ears.
各刀片槽的尾部向外延伸有弹性顶片。
An elastic jacking sheet is extended outwards at the tail part of each knife blade groove.
所述基座底部的定位槽与下机壳尾部两侧及顶端折弯并延伸的肋重合并固定。
The locating slot at bottom of base and ribs on two sides of extended tail part of low chassis as well as bent and extended from top are superposed and fixed each other.
所述基座底部的定位槽与下机壳尾部两侧及顶端折弯并延伸的肋重合并固定。
The locating slot at bottom of base and ribs on two sides of extended tail part of low chassis as well as bent and extended from top are superposed and fixed each other.
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