次生裂變比 的英文怎麼說

中文拼音 [cìshēnglièbiànbǐ]
次生裂變比 英文
secondary fission ratio
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 裂 : 裂動詞[方言] （東西的兩部分向兩旁分開） open
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 裂變 : [核物理] atomic fission; fission; nuclear fission
  1. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  2. In riverbed, rqd is an appropriate index of rock mass structure classification. because the weathering agent causes the change of integrity and structure of rock mass, the relationship between rock mass structure indexes and weathering zoning is discussed through wave velocity ratio

    風化營力的作用使巖體中次生裂隙增多從而導致巖體完整性、巖體結構的變化，本文以波速比為紐帶，研究了兩岸壩肩部位巖體結構量化指標與風化分帶的關系。
  3. In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained

    本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好
  4. Compounding stiffness is introduced for analyzing the characteristics of moment redistribution in the long - span floor beams structure subjected to lateral loading. it is shown from the testing result that the specimen can be analyzed by elastic theory before cracking. the development of cracking in the spandrel beams and the floor beams ( including floor ) causing the compounding stiffness and the bending stiffness of floor beams through the column to change distinctly, correspondingly moment - torque redistribution occurs

    由於過柱子次梁、邊主梁的開裂以及樑上次梁（包括樓板）的開裂，使得過柱子次梁的抗彎剛度和邊主梁樑上次梁板組合剛度發生了明顯的變化，導致產生彎扭重分配，一般情況下，組合剛度與過柱子次梁抗彎剛度的比值增大，邊主梁所受扭矩增加，反之，邊主梁所受扭矩減小。
  5. The beams under secondary loading ( namely the preloading was not removed ) are firstly studied in this dissertation, and the ultimate strength, stiffness, and the distribution of cracks of the beams strengthened with ferrocement have been analyzed. mid - span deflection, crack width and strains of steel were measured during the course of the test, and performances of the beams are compared and assessed with particular emphasis on cracking behavior, mid - span deflection, ultimate strength capacity, the modes of failure and so on

    本文首次對二次受力（初始荷載不卸除）試件進行了加固試驗研究，試驗中測量了試件的極限荷載、混凝土應變、鋼筋應變及鋼筋網應變等，對比了加固與未加固構件的裂縫開展、跨中撓度以及極限荷載情況，並研究了用該方法加固的梁在各種受力情況下可能產生的破壞形式等。
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