源尺寸 的英文怎麼說
中文拼音 [yuánchǐcùn]
源尺寸
英文
source size-
Based on these theories, this paper discusses the method of design of the rectangular gunn integrated active microstrip patch antenna in detail. the size of the active antenna and the location of the device in the antenna is obtained at the specified operation frequency
根據這些理論，詳細討論了一種集成gunn二極體的矩形有源微帶貼片天線的設計，得到了在給定的工作頻率下的有源天線尺寸和有源器件的位置。Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。According to the requirements of the cng on neutron flux, critical wavelength and distance between inpile guides and the cns, the relation between the source size and the critical angle of the coating material of the inpile guides as well as neutron flux at exit of the cngs have been studied
根據導管設計指標的需要，研究了冷源尺寸與堆內導管內壁鍍膜材料的全反射臨界角和導管系統出口處中子注量率的關系。Dimensions of magnetic oxide etd cores intended for use in power supply applications
電源用磁性氧化物etd磁芯的尺寸Magnetic oxide cores etd - cores intended for use in power supply applications ; dimensions
電源設備用的磁氧化鐵芯尺寸Standard test method for determining the focal size of iridium - 192 industrial radiographic sources
測定銥192工業x射線源的聚焦尺寸的標準試驗方法The thoron chamber with the size of 350mm x 250mm x 180mm was made of the perspex. five holes were drilled on the two side with the size of 2 50mm xi 80mm for thoron source input or sampling
用有機玻璃製成（氣土）積累箱，尺寸為350mm 250mm 180mm ，在250mm 180mm的兩個側面上打了五個孔，用於充源或取樣。The absorption characteristics was that the surface plasma absorption peak appeared around 570 nm shifted to a short wavelength and strengthened as the cu composition increased. but the maximal shift range of the absorption - edge preponderated over 500 nm, and leaded that the dipolar plasma resonance absorption peak were covered up and gradually disappeared in the absorption spectrum. we theoretically explained the mechanism of the modulating action
實驗觀察到cu表面等離子體共振吸收峰位在570lun附近的吸收邊頻移量超過了500nln .理論分析表明，吸收峰位的移動主要源於偶極共振，而峰形的寬化主要由納米粒子的表面效應和量子尺寸效應引起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。The quality of buffer layer and thin films was analyzed by afm, xrd, rheed and xps respectively. the effect of the experimental parameters such as carbonization time, working pressure, c source gas flow rate, carbonization temperature, different carbonization gas and substrate on the carbonization process was studied firstly. it was observed that the size of particles was increased with the increase of carbonization time and the rms was opposite, but the trend was reduced while the carbonization time was long enough ; the size of particles was increased with the increase of working pressure too, and choosing a proper working pressure could get a smooth surface ; the size of particles was unobviously changed while the gas flow rate was low, but it was notability increased with the increase of gas flow rate while the gas flow rate was high enough, and a smooth surface could be also obtained by choosing a proper gas flow rate ; with the increase of carbonization temperature, the size of particles was increased, the rms is decreased and a good single - crystalline carbonization layer could be obtained, but a rough surface was formed at a excessive high temperature ; the rms of
對于碳化工藝，側重研究了碳化時間、反應室氣壓、 c源氣體的流量、碳化溫度以及不同種類的c源氣體、基片取向等因素對碳化層質量的影響，研究結果表明:隨著碳化時間的增長，碳化層的晶粒尺寸隨之變大，表面粗糙度隨之降低，但當碳化到一定時間之後，碳化反應減緩，碳化層的晶粒尺寸以及表面粗糙度的變化幅度變小;碳化層的晶粒尺寸隨反應室氣壓的升高而變大，適中的反應室氣壓可得到表面比較平整的碳化層;在c源氣體的流量相對較小時，碳化層的晶粒尺寸隨氣體流量的變化不明顯，但當氣體流量增大到一定程度時，碳化層的晶粒尺寸隨氣體流量的增大而明顯變大，同時，適中的氣體流量得到的碳化層表面粗糙度較低;碳化溫度較低時，碳化層的晶粒取向不明顯，隨著碳化溫度的升高，碳化層的晶粒尺寸明顯變大，且有微弱的單晶取向出現，但取向較差，同時，適中的碳化溫度可得到表面平整的碳化層;相比于c _ 2h _ 2 ，以ch _ 4作為c源氣體時得到的碳化層表面平整得多;比起si （ 100 ） ，選用si （ 111 ）作為基片生長的碳化層的晶粒取向一致性明顯更好。Suitable polycrystalline znsxse1 - x film with zinc sulfide cubic structure and ( 111 ) preferred orientation that provided a good matching with the requirements of lclv were deposited on ito coated glass by mbe method. room temperature photo - responsivity measurements performed on these thin films show that
相比于用zns和se為生長源制備的znsxsel x薄膜，採用zns和znse化合物為源材料的實驗方法制備出的薄膜性能更優良，其晶粒尺寸普遍增大，柱狀晶形更完整。According to the demands of neutron scattering instruments to be built at china advanced research reactor ( carr ), the designs of several new instruments, i. e. two cold neutron guides ( cng ), one neutron stress diffractometer and one high resolution neutron powder diffactometer ( hrpd ), have been simulated and optimized using monte - carlo simulation softwares, mcstas and vitess, first. requirement on the size of the cold neutron source ( cns ) by cngs has been also studied. the results of this thesis have provided essential data as a basis of the neutron instruments designs
本論文結合當前中國先進研究堆（ chinaadvancedresearchreactor ， carr ）中子散射工程譜儀建設的迫切需要，選擇國際上廣泛使用的通用中子散射譜儀模擬軟體mcstas和vitess作為模擬研究工具，首次對若干臺新建譜儀的設計方案進行了全面的模擬和優化研究，包括兩條冷中子導管、中子應力衍射儀和高分辨中子粉末衍射儀，並配合冷源設計研究了導管對冷源尺寸的要求。Departments of fishery administration under the people ' s governments at or above the county level shall designate species under special protection, prohibited fishing areas and closed seasons, fishing gear and methods that are to be banned or restricted and the minimum sizes for the mesh of nets, as well as other measures for the protection of fishery resources
重點保護的漁業資源品種，禁漁區和禁漁期，禁止使用或者限制使用的漁具和捕撈方法，最小網目尺寸以及其他保護漁業資源的措施，由縣級以上人民政府漁業行政主管部門規定。In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律，並耦合進氣畸變的影響，同時與壓氣機氣動性能和氣動穩定性相關聯，作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機（ lsc ）試驗器，採取在靜子葉片表面埋入動態壓力傳感器的實驗方法，對葉尖、葉中和葉根三個截面的動態壓力進行了測量，獲得了大量的可靠的實驗數據。According to dynamical characteristic of the bubble motion in the flow field, and under the assumptions of isothermal system without interior heat source, uniform bubble size, and ignoring surface tension, the mathematical expressions for interfacial momentum exchanges have been deduced which include drag, virtual mass force, and lift
針對氣液泡狀流中氣泡運動力學特性，在系統絕熱、無內熱源、忽略表面張力、氣泡尺寸均一前提下建立了氣液相間曳力、虛質量力、升力的數學模型表達式。This filter works only when the dimensions of the destination are half those of the source, as is the case with mipmaps
僅當目標尺寸是源尺寸的一半時，此過濾器才會生效， mipmap就是這樣。Non - destructive testing - determination of the size of industrial radiographic sources - radiographic method
無損檢.工業放射照相源尺寸的測定.放射照相法Non destructive testing - determination of the size of industrial radiographic sources - radiographic method
無損檢驗.工業射線照相源尺寸的測定.射線照相法Non - destructive testing - determination of the size of industrial radiographic sources - radiographic method ; german version en 12679 : 1999
無損檢驗.工業x射線照像源尺寸的測定. x射線照像法It is shown that, the diameter and height of the cns, 18cm - 22cm and 30cm - 36cm respectively, is necessary, if the 58ni coating or supermirror coating with m = 2 is adopted. the reasonable size of cns has been suggested. the neutron stress diffiractometer, wich is designed for measuring residual stress or applied stress in materials and engineering components, was simulated and optimized
結果表明，在冷中子導管使用~ （ 58 ） ni和m = 2的超鏡鍍膜情況下，所需要的冷中子源直徑為18cm 22cm ，高度為30cm 36cm ，並從導管需求的角度為合理的冷源尺寸提出了建議。分享友人