精確頻率標準 的英文怎麼說

中文拼音 [jīngquèbīnbiāozhǔn]
精確頻率標準 英文
precision frequency standard
  • : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
  • : 形容詞1. (符合事實; 真實) true; reliable; authentic 2. (堅固; 堅定) firm
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
  • 精確 : accurate; exact; precise
  • 頻率 : frequency; rate
  • 標準 : (衡量事物的準則; 榜樣; 規范) standard; criterion; benchmark; pip; rule; ètalon (衡器); merits
  1. Accuracy of the measurement system is verified by standard signal sources. frequency tracking error does not reach 50hz. the measurement system has merits of visual display and high accuracy, which is an ideal measurement system for dual - path saw mass sensor

    應用信號源驗證了測量系統的性,跟蹤特性誤差在50hz以內。該測量系統顯示直觀,度高,是雙聲路聲表面波質量傳感器理想的測量系統。
  2. It shows that a disadvantag ekists when a crsi is used to measure a step structure in a wavefront, but it is useful to adjust a crsi system with lcslm. 4. according to the didriction effect of an aperture, the spatial resolution of our crsi was analyzed and the transform function of our crsi was calibrated by using the psd method of a step wavefront. and some factors which are associated with the accuracy of our crsi were analyzed too

    四、從光學系統衍射效應的角度分析了本文建立的環路徑向剪切干涉儀的空間解析度,並利用波前功譜密度的概念對該干涉儀的空間響應特性進行了定,分析了限制該干涉儀測量度的主要因素以及徑向剪切比與測量度的關系,並指出了該干涉儀的測量范圍,結果顯示該干涉儀基本上可用於測量中低段的波前畸變。
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