Any of various swallows with squarish or slightly forked tail and long pointed wings; migrate around martinmas.
任何尾巴有点方且成叉形、翅膀长而尖的燕子；大约在圣马丁节前后迁移。
Any of various predatory birds of the hawk family accipitridae having a long often forked tail and long pointed wings.
鸢鹞鹰属于鹰科的各种食肉的鸟之一，有长的，经常为叉状的尾和长而狭的翼。
Any of various predatory birds of the hawk family Accipitridae, having a long, often forked tail and long pointed wings.
属于鹰科的各种食肉的鸟之一，有长的，经常为。
Any of nearly 60 species of diurnal Birds of prey in the family Falconidae, characterized by long, pointed wings and swift , powerful flight .
隼形目隼科鸟类。近60种，为昼出的猛禽，主要特征是翅长而尖，飞行迅速有力。
In this paper, an approximate analytical method is developed by which pitching derivatives are predicted for three dimensional wings with pointed leading edge in supersonic and hypersonic stream.
本文给出计算超声速和高超声速尖前缘三维机翼俯仰导数的一个近似解析方法。
In this paper, an approximate analytical method is developed by which pitching derivatives are predicted for three dimensional wings with pointed leading edge in supersonic and hypersonic stream.
本文给出计算超声速和高超声速尖前缘三维机翼俯仰导数的一个近似解析方法。
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