放射系數 的英文怎麼說

中文拼音 [fàngshèxìshǔ]
放射系數 英文
emanation coefficient
  • 放 : releaseset freelet go
  • 射 : 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） ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 放射 : radiate; emit; blas; radiation; emission; shooting; shedding; abjection; emanation; effluence
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Using information of the source term ( information on the magnitude of the radiological release, including the amounts, types and ratios of the released radioactive materials ) and meteorological conditions, the acas models the transport and dispersion of the released radioactive materials and predicts the radiation dose to the public

    根據輻射源項的資料（即事故釋放源的資料，包括放射性物質的釋放總量和各種放射性物質的相對比例等數據）及氣象數據，這套系統模擬是次核事故所泄漏的放射性物質在空氣中的擴散情況，及預測市民可能受到的輻射劑量。
  2. The model of system dynamics is not susceptive to many parameters of the system, but it is susceptive to very few parameters. if these parameters have been changed, their effect will be spread quickly among the system

    系統動力學模型對系統內許多參數表現為相對的不敏感特性，但對個別參數十分敏感，一旦這些參數發生變化，其作用將在系統中放射式地傳播。
  3. Measurements of the electrical properties of transmitting tubes - measuring methods of transconductance and amplification factor

    發射管電性能測試方法跨導放大系數的測試方法
  4. The transuranic elements especially the minor actinides ( ma ) in spent fuel represent potential environmental radiotoxicity hazard in the long term

    核電站乏燃料中超鈾核素，特別是其中的少數錒系核素（ minoractinides ，簡稱ma ） ，對環境具有潛在長期放射性危害性。
  5. Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system

    測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。
  6. 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。
  7. 3. using the improved pas technique, the relative absorption spectroscopy of three ppharyngeal carcinomas cell ( sune - l, cne - l, cne - 2 ), relative absorption coefficient at the wavelength of 420nm of the three cells exposure to different x light quantity, are measured. the photoacoustic signal from the died cells is studied through dying the cells

    用改進的歸一化光聲光譜技術測量了三株人鼻咽癌細胞（ sline - 1 ， cne - 1 ， cne - 2 ）的歸一化吸收光譜系數以及這三株細胞在420nm處的吸收光譜系數對x光放射劑量的依賴關系，並用胎盤蘭對細胞染色，用以反映死細胞的光聲信號。
  8. As mammograms of new cancer cases are added to the database it is looking at, it will become cleverer ? just as radiologists and physicians become more experienced and skilful as they come across more patients

    隨著數據庫中新病例的不斷加入，這個系統會變得更靈敏而準確，就像放射科醫生或內科醫生一樣，診治過越多的病人，醫生就會越有經驗，技術越熟練。
  9. However gluon can interact with other gluons directly. gluon can be. assimilated and emitted by other charged matter at any time and in any place. the number of gluon is not conservation, which shows that any gluon system is open and non - equilibrium

    然而膠子是可以直接和其它膠子相互作用的，能夠隨時隨地被其它帶色荷的物質（即，夸克或膠子或它們組合成的某種系統）所吸收和放射出來，膠子數不是一個守恆量。
  10. Test method for measuring the package attenuation coefficient of a sealed device for radioisotope hermetic test

    放射性同位素密封試驗用封裝器件封殼衰減系數的測量方法
  11. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  12. By analyzing and comparing the network feature index - non - beeline coefficient. shortcut index. joint degree index, demonstrates the cobweb theory that in the conditions which has the same area. scale and density, round - radiation network has the best traffic efficiency

    基於對路網特性指標? ?非直線性系數、快捷性指數、連接度指數分析比較的基礎上，提出並論證了在同等的路網覆蓋面積、規模和密度的條件下，環形放射式路網具有最優的交通效率的蛛網理論。
  13. The number of staff of the radiographer grades in the ha, who have been permitted to retire early under the two rounds of the government s voluntary retirement scheme and the ha s voluntary early retirement programme, are shown in annex iii

    根據政府的兩輪自願退休計劃及醫管局的自願提早退休計劃獲準提早退休的醫管局放射技師職系員工的人數，載于附件三。
  14. Choosing the 1 # hydraulic lp system of casting and rolling in zhujiang steel l. t. d as the researching object, the paper provides the method of appropriately dealing with initial data and judging the acute wear of equipment by using pls arithmetic which is fit for the condition of fewer samples and more variables

    論文以珠江鋼鐵公司連鑄連軋生產線上1 #液壓lp系統為一研究對象，對原始放射光譜數據進行適當的預處理，運用適合於少樣本多相關變量回歸分析的偏最小二乘演算法，判斷設備是否存在劇烈磨損。
  15. The effects of parameters on maximum combustion temperature, smog exit temperature, maximum wall heat flux, averaged wall heat flux of a new phosphoric acid tower with circular water wall were discussed, including phosphorus consumption, excess - air coefficient, wall temperature and radiation absorption coefficient, with the mathematical model developed in part

    摘要利用已建立的數學模型考察了燃磷量、過剩空氣系數、壁面溫度、輻射吸收系數對新型燃磷塔的最高燃燒溫度、煙氣排放溫度、壁面最大熱流和平均熱流的影響。
  16. ( 3 ) complete partial function of dicom rt, including rt image, rt structure set and rt plan and implement the interoperability between two different rt planning systems

    （ 3 ）解決了部分放射治療計劃系統dicom數據介面問題，包括rt圖像， rt結構集， rt計劃三個模塊的實現，基本解決不同放射治療計劃系統間信息共享的問題。
  17. Based on the theory of glow discharge, the angle distribution of electron and the recombination process are simulated by adopting monte carlo method. the doping process of n - type diamond film is investigated by this method for the first time. the results indicate : 1 ) the scattering angle of electrons near the substrate is mainly lange - angle, which is helpful to grow diamond film over a large area when glow discharge is kept ; 2 ) after considering the recombination process, the number of particles distribution is provided

    主要結果如下： （ 1 ）研究了電子在雪崩碰撞和分解電離后的角分佈情況，結果表明基片附近電子的散射以大角散射為主，在維持輝光放電的條件下，較高的偏壓和工作氣壓對金剛石的橫向連續成膜是有益的； （ 2 ）考慮了低溫合成金剛石薄膜過程中電子與各種碎片粒子的復合過程，給出了不同的復合系數情況下的粒子數分佈，結果顯示各種碎片粒子的分佈隨復合系數的變化會出現粒子數分佈的漲落現象。
  18. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。
  19. Optical fibre amplifiers - basic specification - test methods for reflectance parameters - optical spectrum analyser

    光纖放大器.基本規范.反射系數測試方法.光譜分析儀法
  20. Moreover, multiple frequency stimulation method can increase consumption of ic obviously and surface diffuse reflection method can improve surface emission coefficient of ic availably

    混和信號激勵法能明顯增大三極體放大電路耗散功率，特別是第一級耗散功率；增頻激勵法能有效提高ic耗散功率；表面漫射法能有效增大元器件的發射系數。
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