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单词 primary feather
例句 primary feather
His thighs became quite short A web of skin grew from his wrists to his shoulders, while his primary feathers burst out In soft blue quills from the ends of his fingers and quickly grew. The Once and Future King 1958-01-01T00:00:00Z
The illustration shows a bird’s wing, which has two layers of flight feathers, the long primary feathers and the shorter secondary feathers, which overlay the primary feathers. Fundamentals of Biology 2015-01-01T00:00:00Z
A reason to believe evolution is involved is that one of the primary feathers of the wings of crested pigeons is an unusual shape. A bird’s alarm calls do not always come out of its beak 2017-11-08T05:00:00Z
Later, as his adoring fans in Taiwan looked on, those colors gave way to pure white with black primary feathers. Rare Visit to Taiwan by Siberian Crane Is a Bird-Watcher’s Dream 2016-06-02T04:00:00Z
When these birds are fishing, the length of the primary feathers of the wings is seen to be quite necessary, in order to keep the latter dry. Argentine Ornithology, Volume II (of 2) A descriptive catalogue of the birds of the Argentine Republic. 2012-02-26T03:00:16.210Z
On the other hand, in carriers and runts, which have large bodies and long wings, eleven primary feathers have occasionally been observed. The Variation of Animals and Plants Under Domestication, Vol. I.
Two types of flight feathers are found on the wings, primary feathers and secondary feathers. Fundamentals of Biology 2015-01-01T00:00:00Z
Some of the bird’s primary feathers were gone so that the wings cast a barred shadow. The Black Phantom
On the other hand, in Carriers and Runts, which have large bodies and long wings, eleven primary feathers have occasionally been observed. The Variation of Animals and Plants under Domestication — Volume 1
Feathers not only act as insulation but also allow for flight, providing lift with secondary feathers and thrust with primary feathers. Fundamentals of Biology 2015-01-01T00:00:00Z
Not uncommon in India, with the feathers curling backwards, and with the primary feathers of the wing and tail imperfect; periosteum of bones black. The Variation of Animals and Plants under Domestication — Volume 1
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