librations 中文意思是什麼

librations 解釋
天平動
  1. Librations are primarily caused by the moon ' s varying orbital speed due to the eccentricity of its orbit : this allows us to see up to about 6 more along its perimeter

    振動主要地由月亮所引起正在由於它的軌道的古怪改變軌道的速度:這讓我們沿著它的周長見到達大約6更多。
  2. Despite the moon ' s rotational and orbital periods being exactly locked, we may actually observe about 59 % of the moon ' s total surface with repeated observations from earth due to the phenomena of librations and parallax

    盡管完全地被鎖的月亮的回轉而軌道的期數,我們由於振動和視差的現象可能實際上用來自地球的重復的觀察觀察大約59 %月亮的完全表面。
  3. The assembly language program collects and processes the data real time. comparing kinds of method of filter and arithmetic of fft, the author select the fir filter to realize pretreatment of signal and radix - 2 fft to distill the characters of librations

    通過對各種濾波方法和fft演算法進行比較,本套數據檢測和校準處理系統採用fir濾波對採集到的信號進行預處理,利用基2fft演算法來提取信號的頻率特徵。
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