pennaceous

pennaceous什么意思,pennaceous翻译

例句

• Xu calls it a "four-winged" dinosaur because it had long, pennaceous feathers on its arms and legs.

  因为其前后肢上都存在着较长的羽翮，因此徐星将它称之为“四翼”恐龙。

• Pennaceous feathers cover the bodies of birds, and their tightly closed vanes create the aerodynamic surfaces of the wings and tail.

  正羽覆盖鸟的身体，这些紧紧靠拢的羽片，为翅膀与尾部塑造出符合空气动力学的身体表面。

• There are also pennaceous feathers that obviously had differentiated barbules and coherent planar vanes, as in stage 4 of the model.

  牠们身上甚至也有正羽，明显拥有分化的羽小枝和平坦的羽片，如同模型的阶段4所述。