spread tail
名词 n.
英文释义
名词 n.
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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
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数据来源: Wiktionary