field scanning 中文意思是什麼
field scanning
解釋
場掃描-
The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering
模擬結果表明，掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象，並在端點處產生較大的熱應力，使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著，燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響，交替掃描會影響燒結試樣的質量，實際製造時應採用單向掃描策略。 -
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射線衍射儀（ xrd ） 、透射電鏡（ tem ） 、場發射掃描電鏡（ fe - sem ） 、比表面孔隙儀（ bet ）對該復合材料的微結構進行了表徵。 -
Image coordinate and galvanometer pendular angle are kept in the computer according to the f9 field lens characteristic, enter pupil excursion and f6 characteristic error are ignored, that the image of laser scanning point move acceding to unlinearity relation is deduced theoretically. for deducing the distortion, error compensation is considered in the software
像點坐標與振鏡擺角按f物鏡特性的線性關系存儲在計算機，在忽略了入瞳漂移和f特性誤差后，從理論上推導出二維垂直振鏡分佈中激光束掃描點的像點按照復雜的非線性關系運動，為了減少幾何畸變，在軟體設計中給出誤差補償。 -
With the aid of stereo microscope, optical microscope and scanning electron microscope, the periduim, spore and capillitium of all 8 species of myxomycetes, including field collections and agar - development fruiting, were observed and compared from apparent morphology, microstructure to ultra - structure
應用實體顯微鏡、光學顯微鏡和掃描電子顯微鏡，對培養的子實體和野生型子實體的囊被、孢子和孢絲等進行了一般和超微觀察及比較研究。 -
Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。 -
The chemical composition and microstructures of the insulating thin films prepared by different methods were analyzed by x - ray diffraction ( xrd ) and scanning electron micrograph ( sem ) ; other properties such as electric resistance, the breakdown field strength and dielectric properties were evaluated using high resistance meter, voltage resistance meter and precision impedance analyzer respectively
採用x射線衍射儀（ xrd ）對表面絕緣薄膜的物相組成進行了分析，掃描電子顯微鏡（ sem ）對表面絕緣薄膜的微觀結構進行了研究，並用絕緣電阻測試儀、耐壓測試儀和精密阻抗分析儀分別對絕緣膜進行絕緣電阻率、擊穿場強和介電性能的測試。 -
It was the first trial to employ the newly equipped migration data acquisition and analysis system for the scanning entomological radar and, a twin light - trap developed in china for, systematic long - term observations of migration of the beet armyworm spodoptera exigua, beet webworm loxostege sticticalis and cotton bollworm helicoverpa armigera in northern china the study provided direct evidence for the migration of 5 ". exigua in china, many parameters of migratory behaviour of the three species of insects, a better understanding of the relationship between migratory behaviour and wind or temperature field. the results enriched the theory of migration and provided new scientific knowledge for pest management in china
本研究初步闡明了我國華北地區空中昆蟲群落結構，首次使用我國自行研製的掃描昆蟲雷達的數字化數據採集及分析系統，及價廉、高效的姊妹燈誘蟲法對華北地區甜菜夜蛾spodopteraexigua 、草地螟loxostegesticticalis和棉鈴蟲helicoverpaarmigera的遷飛進行了長期系統地觀測，得到了甜菜夜蛾在我國北方遷飛的直接證據，三種害蟲遷飛行為的若干參數，認識了昆蟲遷飛行為與風溫場的關系，豐富了昆蟲遷飛理論，為我國害蟲的治理提供了科學依據。 -
The cenosphere particles were characterized with optical microscope, field emission scanning electron microscopy ( fesem ), energy - dispersive spectroscopy ( eds ) and x - ray diffraction ( xrd ) in and after the plating
用光學顯微鏡、場發射掃描電子顯微鏡、能譜儀和x射線衍射儀對其進行了分析表徵。 -
The corrosion behavior of nanocrystalline ( nc ) copper bulks with various grain sizes prepared from igc ( inert gas condemsation ) and vacuum annealing in comparison with conventional microcrystalline ( mc ) copper ( as - rolled and electrolytic ) in acid copper sulphate solution and neutral solution containing chlorides under free corrosion conditions and anodic polarizations has been studied using potentiodynamic polarization, potentiometric analysis, cyclic voltammetry and electrochemical impedance spectroscopy. x - ray diffraction was used to estimate the grain size of the annealed nc copper. field emission gun scanning electron microscopy and x - ray energy - dispersive spectroscopy was used to characterize the surface morphology and analyze the surface composition after the polarization and potentiometric test of both nc and mc copper
本文研究了用igc （惰性氣體蒸發凝聚原位溫壓法）制備並真空退火到不同晶粒尺寸的納米晶銅和微米晶銅（冷軋紫銅、電解銅）在酸性硫酸銅溶液和中性含氯溶液中，在自腐蝕狀態和陽極極化狀態下的腐蝕性能。使用了動電勢極化、電位測定、循環伏安法（ cv ）和電化學阻抗譜（ eis ）等方法。 x -射線衍射（ xrd ）的方法用來估算納米晶銅晶粒尺寸。 -
Effect of scanning path on temperature field in direct metal laser sintering process
激光掃描路徑對直接金屬激光燒結溫度場的影響 -
Similarly, the paper also makes an analysis of the effect that the truncation error of finite scanning has upon the far - field pattern and then introduces the consequent method of compensation
隨後分析了掃描面截斷誤差對遠場方向圖的影響，並給出了相應的補償方法。 -
A novel modularized near - field scanning optical microscopy was developed, with its modules such as tuning - fork optical fiber probe, scanning head and scanning platform etc, of high performance and easy operation
摘要採用模塊化的設計思想，製成了高質量且簡單易用的音叉光纖探針模塊、模塊化的掃描探頭、掃描臺等，從而研製出高性能，易操作的模塊化的保偏近場掃描光學顯微鏡。 -
In scanning, the technique of using more than one vertical scan to reproduce a complete image. in television, 2 : 1 interlace is used, giving two vertical scans ( fields ) per frame ; one field scans odd lines, and one field scans the even lines of the frame
利用多次垂直掃描來重顯一幅完整圖象的掃描技術。電視中使用2 ： 1的交錯率，即每幀分兩場，垂直掃描兩次，一場掃描奇數行，另一場掃描偶數行。 -
The super resolution effect of sb layer super resolution structure is also investigated with near - field scanning optical microscope. in addition, a rigorous three - dimensional ( 3d ) optical electromagnetic finite - difference time - domain ( fdtd ) model for analysis of a sil system is detailed. in order to accurately analyse sil model, a new method of setting a focused gaussian beam source in fdtd grids is presented
此外，本文還建立了對sil系統光傳輸特性進行模擬的時域有限差分程序，提出一種在fdtd模擬的離散空間設置會聚高斯光源的新方法，並模擬了會聚高斯光束在sil系統中的傳輸，研究了sil在不同離焦情況下底面出射光場幅度及光束半徑的變化規律，為sil存儲系統的優化設計提供了理論依據。 -
Between the cannons on the height stood the general in command of the rear - guard and an officer of the suite scanning the country through a field - glass
在這座高地的幾尊大炮之間，一個率領后衛部隊的將軍隨同一名侍從軍官在前面站著，並用望遠鏡觀察地形。 -
Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress
現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。 -
Customize the depth - of - field for tight scanning environments
掃描景深可根據情況而設置 -
3 - d laser scanning technique is a way that uses laser pulse to scan the object to get the superficial characteristic information of the entity. it applies to the close quarters or middle distance scene of the objects in the real world. 3 - d laser scanner has its outstanding performance in this field
三維激光掃描技術是其中一種利用激光脈沖對物體表面進行掃描從而獲取其表面特徵信息的技術，它適用於中近距離的寬場景、大物體的快速高精度掃描，為建立場景的三維模型提供了必要而且準確的工具。 -
The product has the following characters : all - purpose input, completed separated signal channels, collection of the signal data by scanning, the display technique of lcd big screen, flash memory ; capacious compatible floppy disk, 36 types of signals, multiple alarms, communication of rs232 / 485 and hart confered - link with a view to second generation technique of the field - bus. during the developing course, i used the method of reliability design to design hardware, and researched carefully the process of weak signal. pass to practice, the product has achieved all aim of the design
系統在功能上實現了萬能輸入，信號通道之間的完全隔離，信號的掃描採集，大屏幕lcd顯示技術， flash存儲器進行數據存儲，大容量的具有兼容性的電子軟盤， 36種信號方式，多種報警方式， rs232 / 485通訊，以及著眼于下一代的現場總線技術的hart協議介面等。 -
In order to deal with effect of the high damping, focusing probe with focused sound field is used in testing. the image device of ultrasonic c - scanning, which has functions of ultrasonic testing, pc - based control, data collection, data storage, data processing and image displaying together, is applied in testing for the sake of visual testing result
為了克服高阻尼影響，採用了具有聲束聚焦性能的聚焦換能器對不同形狀的該種復合材料工件進行檢測；為了得到直觀的檢測結果，運用了將超聲檢測與微機控制和微機進行數據採集、存貯、處理、圖像顯示集合在一起的超聲c掃描成像技術，並得到了工件內部缺陷的橫截面圖。
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