back filter 中文意思是什麼

back filter 解釋
反回過濾
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • filter : n 1 濾器，濾紙，過濾用料[砂、炭等]。2 【無線電】濾波器；【物理學】濾光鏡，濾色器。vt 過濾，用過濾...
  1. On the basis of investigation and research about the technology of reconstruction for ict image up - to - date, this paper is devoted to develop an algorithm for image reconstruction based on wavelet theory. in this paper, time - frequency distribution for spatially varying filter was used to construct convolve - kernel by dwt, to modify convolve - back - projection algorithm

    本文在國內外有關ct圖像重建的研究狀況基礎上，根據小波分析理論，利用小波變換在時頻空間的可變性，用dwt變換構造卷積核，對卷積反投影演算法做了改進。
  2. Iolite was the world s first polarizing filter, used to determine the exact position of the sun and navigate safely to the new world and back. the name iolite comes from the greek ios, which means violet. when cut properly, iolite is a stunning purplish blue color with a beautiful and attractive softness

    堇青石的顏色很像緬甸所產出的藍寶石且又因為它常含有水，所以又稱之為水藍寶石，更因為它具有藍寶石的顏色及光澤且價格又比藍寶石便宜很多，因此更被戲稱為窮人家的藍寶石，堇青石的能量是相當穩定的且不能以加熱的方式來改變它的顏色是一種貨真價實的寶石。
  3. The image reconstruction algorithms is thoroughly researched. the filter back projection ( fbp ), algebra reconstruction technology ( art ) and fan beam data rearrangement algorithm used in medical computer tomography are improved. the noser algorithm, linear neural networks method and hopfield neural networks method are presented and gain the better result of image reconstruction

    深入研究了圖像重建演算法，改進了醫學ct的濾波反投影演算法、代數重建技術和扇束投影數據重排方法，提出了帶圖像光滑約束的noser演算法、線性神經網路方法和hopfield神經網路方法，並得到了較好的圖像重建結果。
  4. Dly serial automatic back flush filter

    Dly系列自動反沖洗過濾裝置
  5. Ceramic grain filters ard made of refined pottery clays added with certain modifiers, and processed of grinding, mixing, shaping and high temperature sintering. they do not contain any substances that harmful to people or environment. they are hard and rough in surface, porous inside the structure, and have the advantages of high mechanical strength, large specific surface area and porosity. when used in water treatment, they behave a activated surface property, a great amount of pollutant entrapment, less water head loss in the filter bed, lower consumption of back - flush water, stable in chemical and gbiologic property, and long service life, ceramic grain filters is a new and efficient filter material to increase the water yield, upgrade the water quality, and save chemicals and energy

    陶粒濾料是以精製陶土為主要原料，摻加適量改性劑，經粉碎，混練，成型和高溫煅燒而製成的，不含任何對人體和環境有害的物質.其表面堅硬，粗糙，內部疏鬆，多孔，具有機械強度高，比表面積大，孔隙率大的特性.用於水處理中，具有表面性狀好，截污能力強，過濾水頭損失小，反沖洗耗水量低，化學穩定性和生物學穩定性好，使用壽命長的特點.陶粒濾料是一種能增加水產量，提高出水質量，節省藥劑和能耗的新型高效過濾材料
  6. The experimental result shows that the pressure wave near the outside of the filter tubes attenuated fast in the back pulse jetting, and the pressure wave transited evenly in the filter after it went ayay from the wall of the filter tubes for some distance

    實驗結果表明，在脈沖反吹時濾管外附近區域的壓力波衰減較快，而離濾管壁一定距離后壓力波則在過濾器內均勻傳播。
  7. Back flushing filter plate frame filter

    過濾洗滌乾燥一體機
  8. My nutsche filter back flushing filter

    過濾洗滌乾燥一體機
  9. Back flushing filter

    過濾洗滌乾燥一體機
  10. The filtered solids are systematically removed from the filter during the back - flushing operation. back - flushing is actuated as a function of the differential pressure or a pre - set time, depending on the degree of contamination of the needle - slot candles

    過濾機的清洗排污過程是在設備運行過程中自動進行的，反沖時逐一清洗每個濾芯，其它濾芯仍在連續過濾，可保證濾液的連續供給。
  11. The image of computed tomography ( ct ) is of good quality and high resolution. it can be processed and analyzed digitally therefore, ct has become a new nondestructive detection technique, which is applied widely in aviation, shipping, automobile, public security and other areas. the filter back - projection ( fbp ) technique and the algebraic reconstruction

    =計算機層析成像（簡稱ct ）技術檢測精度高、重建的圖像具有無影像重疊、空間解析度和密度解析度高、可以直接數字化處理與分析等特點，成為近十幾年發展起來的一種新的無損檢測技術，廣泛應用於航空、航天、機械、船舶、公安、海關等諸多領域。
  12. The whole pwm circuit contains two subcircuit, the front - end is pwm module that make up of the counter that based on nine mosfet true - single - phase - clock d flip - flop ; the back - end is demodulated module, which is consist of a three order chebyshev low - pass filter used trans - conductor capacitor. all the subcircuits are simulated. at last, an approving simulated result of the whole circuit is given too

    在調制部分，利用九管單相時鐘d觸發器構成計數器，並由此組成了脈沖寬度調制電路，同時給出了在典型溫度下的模擬結果;在解調部分，介紹了低通濾波器從無源到有源的設計方法，設計了三階切比雪夫低通跨導電容濾波器，同樣給出了相應的模擬結果;最後，作為將脈沖寬度調制電路和濾波器作為整體電路，以脈沖調頻波為輸入進行了模擬，取得了令人滿意的結果。
  13. It shows that the gas - collecting chamber had an important effect on the mutual influence between the neighboring filter tubes in the back pulse jetting

    同時證明在脈沖反吹過程中，集氣室對相鄰濾管間相互影響具有重要作用。
  14. Operation principle of the automatic back flush filter : flow outwards inside liquid that deal with through filter, is it hold back outside the filter screen to greater than filter particle, mesh of size, the clean liquid is flowed out from the export end of the filter

    自動反沖洗過濾器的工作原理：被處理的液體經過濾器由內向外流動，大於過濾器網眼尺寸的顆粒被截留在濾網外，潔凈液從過濾器的出口端流出。
  15. It would not take long for word of that to filter back to leconfield house, so i made it clear to them that i was talking off the record.

    那一類的話不要多久會傳回萊肯菲爾德大廈去，所以我明確地向他們表示，我的談話是非正式的。
  16. Adopting step - motor drive, upper / lower & back exhausting filter structure ; auto - proportioned flux supply ; special wind way design for good protection of the muzzle and avoiding flux flying to preheating zone, reducing any chance of unsafe troubles

    採用步進馬達驅動，上下及后側抽風過濾方式，助焊劑自動供給，特殊風道設計，有效保護噴嘴，防止助焊劑逃逸至預熱區，減少安全隱患。
  17. The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system

    如航跡產生器的設計，該航跡產生器是研究組合導航問題的前提，從國外一些研究組合導航系統的文獻中可以看出，設計這樣一個航跡產生器是非常必要的，所以本文自行設計了這樣一個系統；還討論了捷聯慣性導航系統中捷聯解算的方法，並進行了模擬研究，由於在本文設計的閉環反饋式組合導航系統中，對捷聯慣導系統的平臺誤差進行閉環控制，需要將濾波器輸出的校正量反饋到捷聯解算內部，所以必須對捷聯解算進行深入的研究和分析，更何況捷聯解算問題本身也是導航界的一個熱門研究課題；另外，本文還介紹了gps軌道及其星座模擬的設計思想和方案，與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始，逐步進行gps軌道及其星座模擬，這樣的設計方法對從事衛星導航的研究工作是有價值的；還對組合導航中誤差建模方法進行了研究，綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法，並運用實際研究工作中的測量數據對該方法進行了驗證。
  18. We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences

    系統中採用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟體中採用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
  19. Af fully automatically back flushing filter

    自動反沖洗過濾機
  20. Back wash filter for industry water

    工業用水自動反沖洗過濾器
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