電流起伏 的英文怎麼說

中文拼音 [diànliúqǐfú]
電流起伏 英文
current fluctuation
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 伏 : Ⅰ動詞1 （身體向前靠在物體上; 趴） bend over; lie prostrate 2 （低下去） subside; go down 3 （隱藏...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 起伏 : rise and fall; ups and downs; heave rolling; undulate; fluctuate
  1. In electronic detectors such as photomultipliers and television tubes, noise manifests itself as random fluctuations in the output current.

    對于光電倍增管，電視攝像管之類的電子探測器，噪聲則表現為輸出電流的隨機起伏。
  2. Based on the current helicopter operation at home and abroad on transmission line and its technical development trend, the paper has carried on research and demonstration on feasibility to apply helicopter in cruising inspection of yang - huai 500kv transmission line from various aspects as its significance, necessity, selection of operating management mode and technical working plan as well as its rationalization economically etc. applying helicopter to operate on power transmission has been tendency of the world power industry. on using helicopter to cruise, inspect and maintain the yang - huai 500kv transmission line, the first objective is to insist on flying safety. two steps should be taken seperately for short term and long term objective. first, to rent helicopters and then, to buy them

    採用直升機進行電力作業已經成為世界電力工業的潮流，應用直升機巡視和維護500千伏陽淮線，應堅持把安全飛行作為首要目標，宜分近期和遠期兩個目標分階段實施，先租機，再購機；直升機的選型，主要從安全性和經濟性兩方面考慮，在起步階段租賃bo - 105c直升機；要根據作業項目和方法選擇機載儀器設備；用直升機進行輸電線路巡檢，能極大地提高勞動生產率，具有明顯的經濟效益，並將提高我國直升機運用水平，促進我國通用航空事業的發展，從而帶動相關行業的發展。
  3. On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution

    文中主要研究了電離層的三種影響：信號經過電離層傳播的群延遲引起的成像偏移；電離層的色散效應給線性調頻信號帶來二次相位誤差，導致圖像退化、失真；以及電離層的閃爍、湍流等不規則性引起的信號相位起伏。在此基礎上，比較分析了不同波段、帶寬條件下電離層的影響。
  4. The second, as a novel gyrodevice the two - beam coaxial gyrotron which was proposed by professor liu shenggang is analysed by kinetic theory of ecrm. general dispersion equation for ecrm and expressions for the interaction power and the starting current are derived in the case of eccentricity of the electron beam in the coaxial cavity

    其次，基於迴旋動力學理論，對劉盛綱院士提出的一種新型迴旋管-雙電子注同軸腔迴旋管進行了初步的線性理論研究分析;通過在迴旋中心坐標系中求解線性伏拉索夫方程，推導出了注波互作用方程、互作用功率、起振電流表達式。
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