spread tail

名词 n.

英文释义

名词 n.
  1. The tail of a bird (or likeness thereof) when the tailfeathers are held tautly outward in a fan-like arrangement.
    — Moreover, for slight deflections of the vane from the wind direction a spread tail presents a greater extent of surface to the wind than a straight-tail vane of the same dimensions.

词形变化

spread tails plural
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