焦點長度 的英文怎麼說

中文拼音 [jiāodiǎnzhǎngdù]
焦點長度 英文
focus length
  • 焦 : Ⅰ形容詞1 （物體受熱失去水分 呈現黃黑色並發硬、發脆） burnt; scorched; charred 2 （著急） worried;...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 焦點 : 1 [數學] [物理學] （二次曲線焦點; 主焦點） focal point; focus 2 （問題的關鍵所在或爭論的集中點） ...
  • 長度 : length; longitude; size; extent; footage
  1. Space technology is the most influencing technology of moden science and technology. with widespread use of application satellite, people pay more and more attention to high accuracy and durability attitude control system

    航天技術是現代科學技術中最具有影響力的高技術之一，隨著通信、遙感等衛星的廣泛應用，高精度、長壽命的衛星姿態控制系統成為人們對衛星關注和研究的焦點。
  2. At present, under the background of enough money and lack of productivity, does china still need resolving fdi ? or, how can china make good use of the big amount of fdi, without more relying or the short - term economic increase and the unbalance of industry structure

    或者說，在當前大量外資湧入的背景下，如何提高我國利用外資的質量，擺脫對外資的過度依賴，避免片面追求數量增長而導致短期效應和產業結構失衡的問題，已成為國內外關注的焦點。
  3. Uk data highlights for next week include leading indicators on monday, which are likely to show minor declines, while cpi and rpi data on tuesday could stir the inflation waters again if results are significantly above expectations of + 0. 4 % mom

    英國本周的焦點為周一發布的領先經濟指標，預測將有較小幅度的下降，如果周二發布的消費者價格指數及零售價格指數比預期+ 0 . 4 % （月率）有顯著增長，那麼通貨膨脹問題將再次浮出水面。
  4. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面波機理的基礎上，求出了線光源激勵的超聲振動的位移表達式，發現線光源激勵的近場區表面波具有波形好，信噪比高，指向性好，幅度強等特點。通過理論推導，得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比，並與入射角和散射角有關；適當減小cfpi的帶寬，增加腔長，增大鏡面反射率，或者減小檢測入射角都可以提高系統的信噪比。
  5. New users bring their own kinds of demands, existing users change their focus and often the depth of their studies, the business cycle presents its own kinds of peaks and valleys, and in most cases the data warehouse expands as it stores data to cover longer periods of time

    新的用戶帶來了他們自己的需求類型，現有的用戶修改他們的焦點，並且常常改變其研究深度，業務周期呈現其自己的峰值和谷值類型，在大多數情況下，數據倉庫隨著它存儲數據跨越更長時期而進行擴展。
  6. The two cities kept close watch on each other. recently, hong kong has shifted attention to shanghai as a target competitor. now the chief executive positions hong kong with reference to such cosmopolitan cities as new york and london

    不久之前，港人仍不斷以新加坡為主要的競爭對手，不斷互相揣摩，近期的焦點，則轉移到以上海作為目標對手，但現時行政長官卻提出紐約、倫敦等國際大都會作為新的定位，用意雖好，但道途的遙遠，實行起來的困難程度，卻千萬輕視不得。
  7. The results show that radius and position of focal beam waist, focal angle and focal depth describe focal beam properties. they are determined by waist and rayleigh length of beam before focusing, the position and focal length of focus mirror

    聚焦光束束腰位置和半徑、聚焦角、焦深、焦點偏移量以及焦點漂移量是描述光束聚焦特性的主要參數，它們由四個參量共同決定，分別為聚焦前光束的束腰半徑、瑞利長度和聚焦鏡的焦距以及聚焦鏡到光束束腰位置的距離。
  8. In practical application, due to the parameter accuracy of two point temperature correction is limited by readout circuit noise 、 dynamic range 、 analogue to digital converter word length and calculating noise, the performance of focal plane array detector is not the performance it should be

    目前實用性較好的兩點溫度定標法的校準系數精度受讀出噪聲、信號動態范圍、模數轉換字長和運算噪聲的限制，很難使焦平面探測器的空間殘留噪聲達到應有的精度。
  9. The field distribution and propagation properties in sil system is analysed, and the relationship between the focusing spot size and the defocusing amount is also described. moreover, a novel model is proposed on basis of the fdtd analysis that can make us increase the distance between sil and recording medium without decreasing the recording density

    模擬的過程中還發現，在小尺寸sil透鏡（半徑為波長量級）離焦時，系統焦點可以被推移到離sil底面較遠的位置而不會產生大的解析度損失，根據該結果我們提出了一種增大sil底面與存儲介質間距的方案，該方案對于sil高密度光存儲系統的實用化研究具有重要意義。
  10. Health and development issues will be the focus of the second presidential conference of peace and development of the 2002 - 03 rotary year, in nairobi, kenya, 21 - 23 february 2003

    衛生及發展問題將成為2002 - 03年度第二場社長和平及發展會議的焦點。這場會議將於2003年2月21 - 23日在肯亞的奈洛比舉行。
  11. The confocal laser scanning microscopy ( clsm ) can be a powerful tool for in situ observation and analysis of protein crystal growth kinetics, because of its high - resolution, noninvasive scanning for crystal and 3 - d reconstruction

    摘要激光掃描共聚焦顯微鏡與普通光學顯微鏡相比，其解析度高，同時具有可對樣品進行非侵入性無損傷斷層掃描，以及對樣品形貌進行三維成建等特點，因此，可作為研究晶體生長強有利的工具。
  12. The necessity and possibility to estimate and compensate camera rotation in the long focus imaging system is proposed according to characteristics of airborne imaging system. and choosing some points that have great gray levels as image characteristic to estimate motion is also given

    針對機載成像的特點，提出了長焦距攝像系統檢測和補償旋轉運動的必要與可能性以及利用選擇特徵圖像中的最大灰度值點，作為圖像特徵來估計圖像序列幀間運動的方法。
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