cross variation 中文意思是什麼

cross variation 解釋
雜交變異
  • cross : n 1 十字架；〈the C 〉 耶穌受刑的十字架。2 〈the C 〉 基督教（教義，國家）。3 不幸，苦難；挫折，...
  • variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
  1. The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed

    較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。
  2. I met with very little variation in the politics between charing - cross and covent - garden

    在恰林克勞斯和考丈特花園之間，人們的政見沒有多少差別。
  3. Failure of cast aluminiuin alloy box was analysed by metallographic and fractographic analysis, and cast defect anti variation of cross section thickness were identified as main causes of failure

    通過金相及電鏡斷口分析，確定箱體失效系鑄造缺陷和幾何截面差過大所致。
  4. Making sensitive material : made in non - sulfur vulcanization system with the formula : epdm 100kg, dicumylperoxide ( dcp ) 2kg as cross - linking agent, stearic acid 1kg as processing aid, oxidized zinc ( zno ) 3kg as accelerant, wax oil 10kg as lubricant ; and made in vulcanizing condition : vulcanizing temperature 170 c, vulcanizing time 15minutes, vulcanizing pressure 3 mpa, the vulcanized epdm is optimal sensitive material for petrol. the sensing head equipped with the vulcanized rubber possesses two qualities : better swelling response and better anti - interfere against temperature variation

    敏感材料的制備：用無硫硫化體系；配方為：生膠100kg ， dcp2kg ，硬脂酸1kg ， zno3kg ，石蠟油10kg ；硫化條件：硫化溫度170 ，硫化時間15分鐘，硫化壓力3mpa ，制備的硫化橡膠對汽油的監測較理想，用其裝備的傳感頭不僅有較好的溶脹響應性能，而且有很好的抗溫變干擾能力。
  5. Its interannual variation ' s main period is about 4 ~ 5a and the 7 ~ 8a ' s period exist too ; the interdecadal variation ' s main period of the australian high is about 15a. the interannual variation of australian high ( aah ) has correct correlation with antarctic oscillation and enso, and the enso ' s 4a period has the most important influence on the aah. ( 2 ) when the ah becomes stronger, the members of the whole aamcs are stronger following it. that is to say, in the years that the ah is stronger ( compared to the weak years of ah ) and on the horizontal circulation, the members of aamcs, including the ah, the cross - equator flow ( cef ) between 100 and 160 e, the south china sea south - west monsoom ( ssm ), the south sea monsoon rough, the tropical easily flow, subtropical high ( sh ), the mei - yu front, the mid - latitude effect, become stronger, and their positions are more southward ; in the meridional - right circulation, there are five circulations including classic monsoon meridional - cirle circulation and hadley circulation that become stronger in the strong years of ah than in the weak years of ah

    本文採用ncep ncar再分析月平均的全球海平面氣壓場、高度場、海表溫度場、高雲量和cmap全球降水資料，以及中國160站逐月降水資料，分析了1948 2002年期間澳大利亞高壓（以下簡稱澳高）的年際和年代際變化以及澳高年際變化對亞澳季風環流系統的影響，結果顯示： （ 1 ）澳高存在明顯的年際和年代際變化，澳高年際變化以4 5年的周期變化為主，同時兼有7 8年左右的周期，而澳高的年代際變化則以15年左右的周期變化為主：澳高年際變化同時與南極濤動和enso有正相關，並且enso的4年左右的周期變化對澳高年際變化影響最大。
  6. On the basis of piv measurement of the gas solid velocity field, the size and the numbers of particles are measured by newly developed image processing software. the results are identical with the variation of the factual size of particles. by the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of circulating fluidized beds ( cfb ) riser

    在piv測速系統基礎上，通過二次開發的圖像識別軟體，實現不同工況下各截面顆粒粒徑分佈的測量，測量結果基本反映出實際顆粒粒徑變化，證明了該方法的可行性，進一步獲得了循環流化床稀相區顆粒粒徑分佈特性。
  7. In order to research product properties of the cross wedge rolling ( cwr ), a series of rolling experiments have been carried out on two - roller cwr under the condition of considering the variation of the original diameter, deformation temperature, area reduction and heat treatment methods and so on

    摘要為了研究楔橫軋條件下工件的性能，在考慮原始棒料直徑、變形溫度、斷面收縮率以及工件軋后熱處理狀態等的基礎上，利用二輥楔橫軋機進行了系列楔橫軋軋制實驗。
  8. The form of variable cross - section, used mostly in the practical projects, just has the change of the linear variation on the height of the web plate while keep the width of the flange c hangeless

    實際工程中使用最多的變截面構件形式是僅構件腹板高度線性變化，翼緣寬度保持不變的形式。
  9. This paper also show a rough estimate of the gains of this array, because it needs one year ' s data to collect one year ' s noise correlation variation curves and then give a more practical detection ability of the seismic array. one result of this paper is " seismic array site survery data processing software " exploited by the author. the software can calculate the power spectrum of noise for every site, noise coherence function for every site pair, the cross - correlation curves, the root mean square of noise for every site and the array response

    此外還計算了該臺陣的臺陣響應，發現臺陣響應的主瓣高而尖；旁瓣很小，這歪姐鈕遠宣腔撾踏數公鍍壁韶逼上攏唆精確啻應：有關此臺陣的檢測能力，只能給出一個粗略的估計，因為評價一個臺陣對地震事件的檢測能力需要獲得為期一年的觀測資料，才能給出一年內噪聲場變化的相關值曲線，最終給出更加符合實際的臺陣檢測能力。
  10. To begin with, simulated results of fiber axial stress, interfacial shear stress and variation of axial stress along a sfrc cross section are compared with their analytical solutions by means of a shear - lag method, on the assumption of perfect bonding

    在與本部分有關的研究工作中，首先將纖維和基體完全粘結假設下的解析解和有限元解進行兩個方面的比較：纖維的軸向應力，界面的剪切應力。
  11. Privately purchased copies can be found with the screwback variation, a fastening method that, as with the iron cross 1st class, was preferred by those combat troops whose activities required further security

    私下被購買的仿製品在萬字上略有變動，勛章加固方法與一級鐵十字勛章一樣，那些作戰隊伍因行動要求喜歡更安全的方式。
  12. Humans have not found good therapy to influenza and still depend on vaccines. but the variation of influenza virus reduces the efficacy of the inactivated vaccines that is licensed for parenteral administration in humans. so it is urgent to find a novel influenza vaccine that is cross - protective to different subtypes

    目前對于流感尚無有效的治療手段，仍以疫苗接種為主，但由於流感病毒的抗原變異性強，當前使用的三聯滅活疫苗效果並不理想，迫切需要研製具有交叉保護作用的新型疫苗。
  13. In the calculation of the photoionization cross - section, we find that with the changing of the photon energy, the variation scope of the photoionization cross - section of the envelop function in the previous references is much smaller than that in this paper

    在計算光電離截面時，我們發現:隨光子能量的變化，前人選取的包絡函數計算得到的光電離截面的變化范圍比我們的結果小很多。
  14. From three aspects, that is, the analysis of cause and effect of economic globalization and variation of national cultures, the resurrection of traditional native languages due to power changes, and the varieties of english, this essay elaborates that the globalization is not flattening or systematizing, but varying and cross - permeating

    本文從經濟全球化與民族文化多元發展的動因分析、權力分配變化導致的民族傳統語言復甦、英語的語言變體等三個方面剖析了全球化並非是單一化與體系化的關系，而是多元化與相互交融的趨勢。
  15. Since attackers are usually trying to add malicious scripts, this particular variation is called a " cross - site scripting attack " xss attack

    由於攻擊者通常是試圖添加惡意的腳本，因些這種變化被稱為"交叉站點腳本攻擊" （ xss攻擊） 。
  16. In this study, we have analyzed the time - space variation characteristics of global cross - equatorial flow ( cef ) at the lower and upper rroposphere. especially for the monsoon region of the eastern hemisphere. the ncep / ncar reanalysis dataset used in this study are from 1958 to 1997

    本文利用1958 1997年ncep / ncar逐月再分析資料，分析了全球各經度不同層次上越赤道氣流（ cef ）的時空分佈特徵，尤其是東半球季風區夏季的越赤道氣流。
  17. We rank stocks and make portfolios according to various kinds of risk factors from 1997 to 2002, and test in method of cross - sectional regression. we find that # and stock and portfolio returns lack significant relation, on the contrary, two easily measured variable, market equity and book - to - market equity, combine to capture the cross - sectional variation in stock returns. this conclusion proves that the size effect and value effect exist in shanghai stock market during the research period of this thesis

    通過將1997年到2002年股票收益率數據按各種風險因素進行排序、分組的討論，以及橫截面回歸的檢驗，本文發現與股票組合收益之間缺乏顯著的相關性，相反流通市值和賬面市值比這兩個易於測度的變量一起捕捉了股票收益橫截面的變化，這一結論說明上海股市在本文的研究期間內存在規模效應和價值效應。
  18. We have studied the variation of the differential cross section in inelastic scattering with the parameters of annihilation potential and compared with experimental data. we have got the better potential parameters of three models and the graph of the differential cross section, give the range of the best parameters

    通過研究湮沒勢各參數對非彈性散射微分截面的影響，並與實驗數據進行比較，我們得到了三種模型較好的勢參數及非彈性散射微分截面圖，給出了最佳參數的范圍。
  19. The portal frame is the most widely used in the lightweight steel construction. when designing the portal frame, designers usually design the members with the variable cross - section on the base of the variation of the members " moment

    在應用最廣的輕型鋼結構形式? ?門式剛架中，設計人員往往根據構件彎矩的變化規律，將門式剛架中的構件設計成變截面的形式。
  20. Analysis of element stiffness matrix about bars with rectangular cross - sections and linear variation of height

    高度線性變化的矩形截面桿單元剛度矩陣分析
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