The raw material used is chicken feather.

所用的原料为鸡毛。

youdao

The technology of extracting L-cystine from chicken feather was discussed.

对以鸡羽毛为原料提取L -胱氨酸的工艺进行了探讨。

youdao

Chicken feather fibres have a hollow, tube-like structure which, when heated, develops that increase their porosity and surface area.

鸡毛纤维具有中空的管状结构，它们在加热时发生交联，使得它们的孔隙率和表面积增加。

youdao

"It's probably a chicken feather dyed to make it look more exotic than it actually is, " she stated nonchalantly, her interest in plumage apparently falling within the more normal range.

WSJ: Of Feathers, Showgirls and Biology

Finally, the CGI chicken has a feather-ruffling adventure in the year 2059.

BBC: Oscars: A Morning Stroll animation heads to Hollywood