零度高低角 的英文怎麼說

中文拼音 [línggāojiǎo]
零度高低角 英文
zero degree elevation
  • : Ⅰ數詞1 (零數) zero2 (數的空位) zero sign (0); nought 3 (表示沒有數量;無) nil; nought 4 (...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
  • 高低 : 1 (高低的程度) height 2 (高下) relative superiority or inferiority; difference in degree 3 (...
  1. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動出發,提出了一種lcc諧振型恆頻移相單相頻鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移相按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、頻逆變,從而獲得正弦較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂電壓開通,滯后橋臂或者電壓開通( _ 0 )或者電流關斷( _ 0 )的軟開關特性,而頻逆變器的各個開關均實現電壓條件下的開通與關斷。
  2. Secondly, the resolution of ray tracing based on the differential equations avoids the limitations of the methods based on integral equations such as low computation efficiency and the calculation difficulty at small initial angles in the vicinity of antenna, and the higher computation precision remains with a higher efficiency

    二、本文選用的以電波射線微分方程為基礎的射線描跡解決方案,可有效地避免沿用已久的積分演算法計算效率初始仰附近難以計算等局限,並保持較的計算精和計算效率。
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