極低空目標 的英文怎麼說

中文拼音 [kōngbiāo]
極低空目標 英文
extremely low-altitude target
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : Ⅰ名詞1 (眼睛) eye 2 (大項中再分的小項) item 3 [生物學] (把同一綱的生物按彼此相似的特徵分為幾...
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • 目標 : 1. (對象) target; objective 2. (目的) goal; aim; destination
  1. High frequency surface - wave radar ( hfswr ) utilizes the surface - wave mode of vertical polarization electromagnetic wave propagation over sea water to detect targets of ships and aircrafts at distance beyond the line of sight

    高頻地波雷達( hfswr )依靠高頻垂直化電磁波沿海洋表面繞射傳播的機理,實現對海面艦船飛行的超視距探測。
  2. The purpose of studying the structure - activity relationship ( sar ) of vitamin e is to study the difference of the molecular geometry, which has different effect on the reaction activity of the molecule and produce different biological activity. semi - empirical ami and pm3 method and ab initio 3 - 21g methods are applied to optimize the four different geometries of tocopherol in the present work. using the two methods we have obtained some parameters about the biological activity

    計算步驟是,先使用hyperchem6構造出各種化合物,用hyperchem自帶的分子力學mm +和polak - ribiere優化方法在分子的構象間中尋找能量相對較的構象,然後用am1半經驗方法進一步優化其構型,得到一系列能量值,然後利用hyperchem6 . 0其中集成的qsar模塊,計算化合物的qsar參數,其中包括:疏水性參數( logp ) 、分子表面積、總體積、折射率、化率等參數。
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