環形測向天線 的英文怎麼說

中文拼音 [huánxíngxiàngtiānxiàn]
環形測向天線 英文
ring type sense antenna
  • : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 環形 : annular; ringlike; ring form; bight; annularity環形癌 annular carcinoma; 環形電路 [訊] loop circu...
  1. Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles

    文摘:介紹了國內外預飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外駐點熱流密度的計算,分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法,概述了航飛機迎風面中心和離開中心熱流密度的計算.計算結果表明,本文方法用在航飛機氣動熱境初步設計中比較簡單並且有足夠精度
  2. In the practical environment, the shape and the size of the measure antenna array is much critical

    在實際境中,對陣的狀與尺寸有較高的要求。
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