準直孔 的英文怎麼說

中文拼音 [zhǔnzhíkǒng]
準直孔 英文
collimating orifice
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  1. A comparative study of fanbeam collimator and parallel - hole collimator

    準直器與平行孔準直器的性能比較
  2. Do some necessary calculations and decide on the general scheme of compton back - scattering imaging scanner to the real wall inspection. include the selection of radioactive source, the calculation of compton back - scattering beam, the calculation of the basic condition of finding out the different materials and the determination of some important parameters as well. 3

    其主要內容包括入射源的選擇，散射粒子的理論計算，發現異物的最低條件計算以及系統的一些重要參數的確定，主要包括：放射源的選擇，散射角的確定，后準直器的形狀與尺寸，前準直器的尺寸，前準直孔的大小，檢測器的種類與型號，檢測器的效率等。
  3. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究，提出了一系列可供參考的數據：確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角；討論了第二準直器的尺寸和發散，以及使用第二準直器造成的強度損失；給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率，以及多種組合情況下譜儀的解析度曲線；對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。
  4. In the process of manufacturing printed circuit board ( pcb ), every board has to be drilled based holes firstly. so the precision of based holes greatly influence the quality of pcb

    在印刷電路板生產中，定位孔的精度對pcb加工質量有很大影響，傳統的加工方法是靠人眼直接瞄準，影響定位精度和生產速度。
  5. By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole

    通過非飽和沙漠砂直剪試驗和常規三軸剪切試驗，研究了含水量和干密度對非飽和砂強度的影響，建立了這種砂的強度準則。通過非飽和沙漠砂邊坡室內平面應變試驗，分析了沙漠井場浸法施工中就基坑壁的破壞方式，推導出了基坑和樁孔容許開挖深度的計算公式。
  6. Dual sieve - mesh collimator

    雙篩孔式準直器
  7. The sight of so many good - humoured faces especially the blacks, the taste of the tropical fruits, and above all, the lights that began to shine in the town, made a most charming contrast to our dark and bloody sojourn on the island ; and the doctor and the squire, taking me along with them, went ashore to pass the early part of the night

    那麼多和顏悅色的面孔尤其是黑人熱帶水果的風味，特別是華燈初上的小鎮景象，簡直太可愛了。同我們在島上時那種殺機四伏血雨腥風的氣氛形成鮮明的對比。醫生和鄉紳帶我上岸去準備玩一個晚上。
  8. Recent studies have shown single - section helical ct to be useful in differentiating perforated from nonperforated appendicitis, the authors explain, but the accuracy was not high for any single finding

    作者指出：近期的研究顯示，單節螺旋ct可以對闌尾穿孔的診斷有一定作用，但其準確性一直不盡如人意。
  9. The aeh50 is compatible with the full range of surround, speaker and eq modes available in today ' s av receivers

    該系統採用標準的音頻接線的拓撲結構，與衛星直接連到影音接收機的議長碼頭及重低音系統連接到接收器的分列或音效出插孔。
  10. Application of video streaming media technique in teaching

    本標準適用於最大鉆孔直徑小於或等於
  11. Abstract : by cooperating the two - model method with parallelogram frame in this paper, the curve of two crossed cylinders with their axises in a state of vertical can be easily and accurately realized, and the mechanism withdrawn from the method can be applied directly to the hole gas - cutting on high pressure capsules

    文摘:採用雙靠模法與平行四邊形機構的組合，可簡易、準確地實現軸線垂直的兩圓柱體相貫線軌跡的復現，其原理可直接用於壓力容器上圓孔的氣割。
  12. To ensure the construction quality and safety of large diameter bored piles in deep waters, it is crucial to apply the leading construction technologies with steel liners that are fabricated with appropriate wall thickness and to a high level of quality

    摘要採取先進的施工工藝和設備，高精度地沉設具有必要壁厚和高水準加工質量的鋼護筒，對于保證深水大直徑鉆孔灌注樁的施工質量和安全是非常重要的。
  13. Standard test method for maximum pore diameter and permeability of rigid porous filters for laboratory use

    實驗室用剛性多孔過濾器的最大孔隙直經和滲透性的標準試驗方法
  14. Applying the standard gaussian beam abcd matrix propagation theory, the parameters selection and the corresponding performances of a laser - guide - star emission system are presented theoretically. in received system, the light route matching problems of the micro - lens array and ccd, collimating lens are considered. the performances of seven - aperture and multi - aperture lens arrays are measured by he - ne laser beam

    採用高斯光束標準abcd傳輸矩陣理論設計了發射系統參數，討論了不同參數的微透鏡陣列和準直透鏡、 ccd的光路匹配問題，並用he - ne激光束檢測了七孔徑和多孔徑透鏡陣列的工作性能。
  15. Hole of nominal size connects with pneumatic operation organ, threr is a square body protruding out which directly connects with the internal octagon of pneumatic operation organ

    標準尺寸的孔與氣動執行機構連接。中間為一伸出體外的方身，直接與氣動執行機構內八角相連。
  16. In this era of minimally invasive surgery, therefore, successful laparoscopic repair of colonic perforation after colonoscopy has been reported more and more frequently

    因為這樣的病人大多接受過大腸準備且接受手術的時間離穿孔發生的時間通常不長，所以一般可將大腸穿孔直接縫合修補。
  17. The max. depth of drilling is about 50 times of drill tools dia and have to see material for drill specially size

    本機種鉆孔深度以鉆頭直徑50倍為標準，特殊規格需視加工材質定
  18. Its feature is that the work position of all pre - collimator ' s holes can be selected and put into the use by the computer automatically. 4

    其特點是工作的各準直孔徑位置和安全位置可通過計算機控制自動進行切換，使用靈活、方便、安全，以滿足我們多種檢測的需要。
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