放射衰減 的英文怎麼說

中文拼音 [fàngshèshuāijiǎn]
放射衰減 英文
emission decay
  • : releaseset freelet go
  • : 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) ...
  • : 衰動詞(衰弱) decline; wane
  • 放射 : radiate; emit; blas; radiation; emission; shooting; shedding; abjection; emanation; effluence
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. Test method for measuring the package attenuation coefficient of a sealed device for radioisotope hermetic test

    性同位素密封試驗用封裝器件封殼系數的測量方法
  2. The main cause of signal ' s decrease in infrared channel of spacecraft flying remote sensing instrumentation is water vapor deposition on the surface of low temperature optical instruments which released from materials

    摘要空間遙感儀器紅外通道的信號,人軌初期的主要原因是由於材料釋的水汽在低溫光學窗口表面沉積,導致紅外透率降低所致。
  3. We define the recombination time of excess electrons in p field as the minority carrier lifetime. in theory, we developed the equation between excess minority carriers lifetime and the open - circuit voltage decay ; moreover, the effect of capacitance to general open - circuit voltage is also investigated. both different efficiency solar cells are measured by the method and showed the relations between the minority carrier lifetime and the performance of solar cells, which provides great useful guidelines for fabricating high - efficiency silicon solar cell in industry

    根據太陽電池的工作原理,詳細地論述了用脈沖光源照n / p結太陽電池時光電壓的產生,理論上給出了注入p區的電子復合帶來的開路電壓與少子壽命的關系,也研究了n / p結勢壘電容電對開路電壓的影響關系,推導了利用開路電壓隨時間的關系來測量少數載流子壽命的理論公式。
  4. During the decay process of a radioactive material, the total number of that nuclei decreases with time

    性核素在變過程中,該核素的原子核數目會逐漸少。
  5. We provide rf assemble as well, including power splitters, amplifiers, phase detectors, attenuators, synthesizers, multiplexer and radar receiver subassemblies for rf application

    頻組件包括功分器,大器,鑒相器,器,頻綜,倍頻組件,雷達接收組件等。
  6. They found two events showing the shortening of pulsating cycle and decaying of radiations intensity. the signatures matched theories of what scientists would predict to see. when matter is falling so close to the event horizon, it will be circling the black hole with increasing speed and its light will rapidly dim as it is stretched by gravity to ever - longer wavelengths

    研究人員分析了極大量來自緻密天體天鵝座xr - 1的紫外線輻,發現其中兩組數據顯示,輻脈沖的周期隨時間縮短,而其強度則隨時間至消失,這現象與一些物質在接近黑洞視界時繞著黑洞急促旋轉,出的輻因為重力紅移而的情況相符。
  7. Standard practice for preparation of airborne particulate lead samples collected during abatement and construction activities for subsequent analysis by atomic spectrometry

    原子光譜分析用性強度時空氣中微粒鉛樣品制備的標準規程
  8. Meanwhile, positrons from the decay of a form of radioactive sodium are separately slowed and accumulated

    同時,來自性鈉一種形式的正電子被慢慢分開且累積起來。
  9. Two wedge interferometers are designed that the thickness of one is higher than the other. so when the incident coherent light through the interferometers can acquire two fringe patterns which having space shift, but the incident incoherent light only result in consistent intensity signal. through a differentiating amplifier, two signals subtract which can eliminate noise of background and result in higher contrast ratio fringe signals. this method largely improves the system and the ability of detection. the spacing of line fringes is a function of incident laser wavelength, by analyzing, we can extract the wavelength of incident laser. the optical unit analyzing and results also simulated with matlab

    當背景光入時,直接穿過干涉儀,僅發生強度的,在兩個探測平面上產生幅度基本一致的灰度信號,通過差分大器,相消為零,從而抑制了背景干擾。當激光信號入,穿過干涉儀時受到調制,在探測平面上產生干涉條紋。通過所設計的存在平均厚度差的雙楔形干涉儀,兩路干涉條紋圖案出現相對移位:在兩個探測平面對應的位置上,一路出現亮紋,另一路出現暗紋。
  10. The designs and realizations of the representative radio frequency modules, such as power attenuator, directional coupler, filter, small signal amplifier and oscillator, were emphasized

    重點分析了典型頻模塊電路(如:功率器、定向耦合器、濾波器、小信號大器和振蕩器)的設計和實現。
  11. The spent fuels would be stored and cooled in the " spent fuel pool " inside the fuel building for about 10 years to allow for the radioactive decay of its nuclides and removal of the residual heat

    「乏燃料」會在燃料廠房內水池中貯存約十年,進行冷卻排除餘熱,以及待其性因變而隨時間退後,再運往西北偏遠地區進行
  12. The spent fuels would be stored and cooled in the " spent fuel pool " inside the fuel building for about 10 years to allow for the radioactive decay of its nuclides and removal of the residual heat. the spent fuels would then be transported to remote site in the northwest region for either

    「乏燃料」會在燃料廠房內水池中貯存約十年,進行冷卻排除餘熱,以及待其性因變而隨時間退後,再運往西北偏遠地區進行
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