透射孔 的英文怎麼說

中文拼音 [tòushèkǒng]
透射孔 英文
beam orifice
  • : Ⅰ動詞1 (滲透; 穿透) penetrate; pass [seep] through 2 (暗地裡告訴) tell secretly; let out; lea...
  • : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
  1. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎,利用以土骨架和隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  2. The ultrastructure of the merozoites of eimeria tenellawas observed and discribed. the pellicle consist of two layer membranes, the outer membrane was a continous covering enclosing the whole merozoites, while the inner pellicular complex is interrupted at the anterior and the micropore, and thicken to form the polar ring and micropore. there are 24 microtubules under the pellicle of the merozoite which originated from the polar ring, all of them are connected with the polar ring, and extend alongside the inner pellicular complex to the middle of the merozoite. the head of the merozoite consists of a conoid, an apical vesicule and polar ring. the conoid is a hollow truncated cone. the conoid and spical vesicule can stretch and contract. there are three or more rhoptry and a lot of micronemes. the nucleus has nucleolus. and two layer membranes

    利用電鏡對柔嫩艾美耳球蟲裂殖子的超微結構進行了觀察描述.柔嫩艾美耳球蟲裂殖子的表膜由外膜和內膜復合體兩層組成,外膜連續,內膜復合體在頭部斷開形成極環,在其它部位斷開形成微;裂殖子的膜下微管24根,起始於極環,向後延伸至細胞核處;裂殖子的頭部由頂泡、錐體和極環組成,錐體和頂泡可以伸縮;柔嫩艾美耳球蟲裂殖子棒狀體3個以上,微線數量很多,二者都由電子緻密的結構組成;細胞核位於裂殖子的中後部,外被雙層膜,有電子緻密的核仁和染色質
  3. In chapter two, we fabricated r - ni - fe / al2o3 nanocomposites successfully by using ball - milling mixing method plus hot - pressing process. meanwhile, their microstructures are characterized by x - ray diffraction ( xrd ) analyser, transmission electron microscopy ( tem ), field emission scanning electron microscopy ( fe - sem ) and brunauer - emmett - teller ( bet ). the results indicate that ni - fe particles are homogenously dispersed in the matrix in the composites

    在第二章中,我們採用高能球磨混合方法加上熱壓燒結工藝,成功制備了ni - 20fe al _ 2o _ 3納米復合材料,並通過x線衍儀( xrd ) 、電鏡( tem ) 、場發掃描電鏡( fe - sem ) 、比表面隙儀( bet )對該復合材料的微結構進行了表徵。
  4. A circular opening in an opaque screen transmits only a small circular patch of a wave surface.

    明屏上一個圓僅僅波面的一小圓塊。
  5. This paper is a part of the project : research of manufacturing technology for unfocused aspherical surface system of large relative aperture, sponsored by national high technology 863 - 802. the purpose of this paper is deeply research the testing methods of primary and second mirror for unfocused aspherical surface, and to present the testing methods of primary mirror of the large relative aperture and transmission and reflected second mirror. the beam path diagrams and the relative design results are given in this paper

    本文是國家高技術項目863 - 802的子課題「大相對徑無焦非球面系統製造技術研究」的一部分,其目的是對大相對徑無焦非球面系統的主鏡和次鏡檢驗方法進行深入研究,提出大相對徑主鏡和式及反式次鏡檢驗方法,並給出檢驗方案和相關的設計結果。
  6. The effects of acid counteranions on the mesophases were investigated by x - ray diffraction and high - resolution transmission electron microscope

    採用小角x線衍和高解析度電鏡研究了不同酸根離子對產物介結構的影響。
  7. It is found that starch microgel has microporous network structure and environmental responsiveness, moreover, its volume phase transition temperature ( tc ) is around 37, which are researched by the characterization of tem, dls, light refraction and other techniques. so, starch microgel with those advantages can be expected to use as a targeting drug carrier

    藉助電鏡、動態光散、光折等技術的表徵,發現所制備的澱粉微凝膠具有微網路結構和環境敏感性,而且相體積轉變溫度( t _ c )約37 ,所制澱粉微凝膠的這些優越性可望作為靶向藥物載體。
  8. Calculation method and affecting factors of productivity for deep penetrating perforation with hydraulic jet flow

    深穿水力產能的計算及影響因素
  9. The transmission electron microscopy ( tem ) images show that ceo2 nanowires are about 60 nm in diameter, which correspond to the pore sizes of the membranes used. the selected - area electron diffraction ( saed ) pattern indicates that the nanowires selected are single crystals

    電鏡(幾瑪圖像可以得知ceo :納米線直徑大約60nln ,與所用膜的徑相符,電鏡選區衍( saed )顯示所選的ceo :納米線為單晶結構。
  10. Influencing factors to productivity for high pressure water jet perforation

    高壓水流深穿透射孔產能影響因素
  11. The exploitation of bottom - water reservoir by water - jet deep penetrating system

    水力深穿透射孔技術用於底水油藏開發
  12. Deep penetrating bullet

    深穿透射孔槍彈
  13. The productivity formula and effective factors in water - jet deep perforation well

    水力深穿透射孔井產能計算方法及開發效果分析
  14. Stimulation mechanism of oil well using high - pressure water jet deep - penetrating perforation technique

    高壓水流深穿透射孔增產機理研究
  15. Based on the analysis on the prince - pies of electromagnetic detecting, two detecting methods of the depth of water - jet perforation base on hall sensing technology were issued and their applicability was analyzed in the paper

    摘要分析了電磁檢則的基本原理,提出了基於霍爾傳感技術的水力深穿透射孔檢測的2種方案,並進行了適用性分析。
  16. Influence of slit width and sample interval on transmitted spectrum of porous aluminium coating inlaid with copper

    狹縫寬度與取樣間隔對鑲嵌銅多鋁膜光譜的影響
  17. Synthetic aperture radar work making use of microwave and it is coherent - imaging system. synthetic aperture radar is little affected by atmospheric condi - tions. it also allows night imaging. so it playes a more and more important role in both civil and military areas

    合成徑雷達( sar )是一種工作在微波波段的相干成像雷達,由於其全天候和強性等特點,在軍事和民用方面顯示出巨大的發展潛力和廣泛的應用前景。
  18. The results show that the study on transimittivity can be done using the points along the circle arc centered at the roadway or the boring core, the transimittivity at the joints along the right angle ray can be studied using one single point behind the joint, and the studies on transimittivity can be done on any reasonable radius value of the roadway or boring core in a typical rock

    分析結果表明:單節理后各節點率的研究,可以通過單節理后某一以巷道或鉆中心為中心的圓弧上各節點的率來展開;線角為90的線上節理后各節點率的研究,可以通過節理后某一節點的率來展開;單節理的率的研究可以在一個固定半徑值的巷道或鉆的模型上用一種典型的巖石進行。
  19. Optical transmission enhancement of two - dimensional subwavelength hole arrays in metallic films

    二維亞波長金屬小陣列的光增強效應
  20. The fertilized eggs of hemibnrbus lubco have been observed by sem, tem and om, and main events of fertilization biology have been studied, too. the results suggest : the micropylar apparatus, being composed of vestibule and micropylar tube, is deeply sunken with a short tunnel

    對唇(魚骨)受精過程中發生的主要事件進行組織切片、和掃描電子顯微鏡觀察,結果表明:精器屬深凹陷、短徑型,精管一次只能通過一個精子。
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