焦軸 的英文怎麼說

中文拼音 [jiāozhóu]
焦軸 英文
focal axis
  • 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;...
  • 軸 : 軸Ⅰ名詞1. （圓柱形的零件） axle; shaft 2. （對稱部分的直線） axis 3. （圓柱形的纏繞器物） roller; spool Ⅱ量詞（用於纏在軸上的線以及裝裱帶軸子的字畫）
  1. The mirror of an astronomical telescope forms at its focal point an image of a star on the axis of the mirror.

    天文望遠鏡把在鏡軸上的星體成象在焦點上。
  2. ( 2 ) the causation that the caustic phenomena of electromagnetic wave propagation in two - dimension concave reflectors occurs and the types of singularities in caustic fields are investigated, and the conclusion that there are two types of singularities ( fold and cusp ) in caustic fields in two - dimension concave reflectors is obtained ; by symplectic geometrical method, formulations of computing wave fields in and far away from caustic fields in two - dimension concave reflectors are deduced, and the results are plotted in pictures. ( 3 ) the cause of the caustic phenomena of electromagnetic wave propagation in three - dimension concave reflectors and the types of singularities in caustic fields is discussed, and the conclusion that there are three main types of singularities ( fold, cusp and swallowtail ) in caustic fields in three - dimension concave reflectors is obtained ; by symplectic geometrical method, the formulae of computing wave fields in and far away from caustic fields in three - dimension concave reflectors are deduced. particularly, the wave fields in ellipsoid concave reflector are computed, and the results displayed in special sections are given

    論文主要包括三個方面： （ 1 ）分析了凹面反射的焦散現象，給出了不同凹面反射的焦散圖； （ 2 ）分析了二維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了二維凹面反射波動場焦散區奇性主要有折疊（ fold ）和尖點（ cusp ）兩種的結論，利用辛幾何方法構造了圓錐曲面反射波動場非焦散區和焦散區的通用計算公式，並給出了圓柱面、橢圓柱面及雙曲柱面反射的計算結果； （ 3 ）分析了三維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了三維凹面反射波動場焦散區奇性主要有折疊（ fom 、尖點kusp和燕尾k ）三種的結論，提出了利用辛幾何方法計算三維凹面反射波動場非焦散區和焦散區的計算方法，並給出了三軸不等橢球體凹面反射波動場的計算結果剖面圖。
  3. Major product has crane and mine to use related service and the products such as exavator, the rolling mill of seamless steel tube, board tape rolling mill, the oil membrane bearing of rolling mill, the extruder of nonferrous metal, forging press, burnt stove equipment, pressure vessel, deceleration machine, train axle, train ship, precise casting forging and large scale casting forging

    主要產品有起重機、礦用挖掘機、無縫鋼管軋機、板帶軋機、軋機油膜軸承、有色金屬擠壓機、鍛造壓機、焦爐設備、壓力容器、減速機、火車軸、火車輪、精密鑄鍛件、大型鑄鍛件等產品和相關服務。
  4. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。
  5. In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method

    本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最後利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。
  6. In this thesis, the properties of the free - space propagation and focus were studied when a beam propagates through an axicon

    本論文主要是探討激光光束經過軸棱錐轉換后產生的無衍射光束的傳輸特性和聚焦特性。
  7. Based on huygens - fresnel diffraction integral theory, the propagation properties of bessel beam were studied in this paper. by using the analyses of geometrical optics, hollow beam are found and the formula of the starting point 、 the end point and the bottle length can be got

    論文中，我們基於惠更斯-菲涅耳衍射積分理論研究了由軸棱錐產生的貝塞爾光束的傳輸特性，並且通過幾何光學解析無衍射光束的聚焦特性。
  8. This paper mainly analyzes and studies the typical problem of oil leakage of centrifugal pumps of 1 million tons / a delayed coke unit of petrochina jinxi petrochemical company

    本文對中國石油錦西石化分公司100萬噸年焦化裝置離心泵運行中軸頭甩油這一技術問題進行了具體的分析和研究。
  9. Though, the lateral resolution of cm has been enhanced to be 1. 4 times of that of a conventional optical microscope under the same aperture focus ratio, it is still two orders of magnitude lower than the axial resolution of itself. so, it is urgent to further improve the lateral resolution of cm

    然而，盡管共焦顯微鏡的橫向分辨力已提高到相同孔焦比的普通光學顯微鏡的1 . 4倍，但與其本身的軸向分辨力相比，橫向分辨力仍低2個數量級，因此進一步改善共焦顯微鏡橫向分辨力的研究顯得尤為迫切。
  10. To deal with the case of 2 dimension spatial self - focusing, it predicts the catastrophic collapse of a self - focusing beam in a kerr medium. this un - physical collapse is due to the invalidity of the paraxial wave equation in the neighborhood of a self - focus

    在該理論應用於空間二維的自聚焦時，出現了光束將無限聚焦的結果，這在物理上是不可想像的，原因是在自聚焦點附近傍軸方程已經失效了。
  11. " close - up performance of the summicron - m is on the same level as the performance at infinity setting ( actually infinity is that distance where the incoming light rays are parallel to the optical axis

    近攝表現與無窮遠時相當（事實上，無窮遠處的光線是平行光軸入射的.對多數鏡頭而言，大約100倍焦距的物距時，入射光滿足這一條件）
  12. The amplitude values at a certain moment in a seismic record received at a shotpoint and a detection point might come from reflections of various points on an underground ellipsoid, which has the shotpoint and the detection point as its focuses, and the connected line of the shotpoint point and the detection point as its major axis

    摘要一個炮點和一個檢波點接收的一道地震記錄上某一時刻振幅值，它可能來自地下一個橢圓面上各個點的反射，該橢圓面以炮點和檢波點為焦點，炮點和檢波點的連線為長軸。
  13. And pbo single crystal nanowire was successfully prepared with new method. the results show that the amorphous matrix of the powders almost completely transforms into crystalline perovskite phase after 600 calcinations. the mean grain size in pt / tb powder is about 23nm that is smaller than that of pt powders

    鈣鈦礦相的晶軸比c / a比未摻tb的pt粉末低，具有贗立方結構的特性，降低了從立方相向這種四方相轉化的勢壘，從而有效地抑制了較高溫下焦綠石相的產生。
  14. 2. to design an axial magnetic field. the cathode lies in 0. 4 - 0. 7 of peak value of the magnetic field and excursion channel in a uniform magnetic field to suppress space charge effects ; to design transition section between the gun and excursion channel in converse computation. 3

    選擇電子槍陰極處于軸向聚焦磁場峰值的0 . 4 - 0 . 7倍處;漂移通道（互作用區）位於均勻軸向聚焦磁場中，以抑制電子束的空間電荷效應;使用反演算法設計電子槍和漂移通道之間的過渡區。
  15. The work of the adjustment mechanism is a project which is supported by the state committee of " 863 ". three design mechanisms are proposed, bearing and screw style, movable bearing style mechanism and assembly style mechanism. it is difficult for the precision of the mechanism made of movable bearing to meet the requirements of the design because the bearing must be made individually

    空間太陽望遠鏡成像鏡調焦機構的設計是在國家「 863 」高科技課題中展開的，本文有創建性的工作是根據設計要求提出了三種機構設計形式，包括直線軸承式、移動滾珠式和裝配直線軸承式，比較了三種機構各自的優缺點，並根據其中的一種加工製作了實際模型。
  16. You have to do the measurings only when both the digital comparator and the axis in measure focus bar are perfectly steady and exactly in the same points

    你不得不做測量，當數字比較器和軸的聚焦條在同一點是確定的、穩定的。
  17. In this position do sharp microrotations clockwise and counterclockwise. the focus bar has always to remain at most, while the digital comparator red reference does very small swings

    在這個位置對主軸做一下順時針和逆時針移動。聚焦條總是存在，當數字比較器的顯示紅色，存在一些小的震動時。
  18. With the focus bar at most, go on the most left point of the digital comparator and now stop the spindle rotation ; the focus bar has to be completely lightened and has not to switch on or off segments

    當聚焦條出現了絕大部分時，繼續向左移動數字比較器顯示值停止，停止主軸的旋轉；聚焦條完全的點亮並顯示在屏幕，並且中間沒有分割點。
  19. A calculation method and calculation results that show that a new kind of shaped paraboloid antennas can produce a ringy radiation pattern is presented

    摘要通過數值計算發現：將拋物線繞通過焦點的非拋物線對稱軸旋轉而形成的賦形拋物面天線可產生環狀的方向圖主瓣（此主瓣指的是主瓣最大值處） 。
  20. In chapter 2, we discuss the optics self - focusing in beam propagation. the early research was based on the scalar approximation and paraxial approximation

    早期的自聚焦研究是在考慮了傍軸近似和標量場近似的前提下得到的。
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