近交系雜交 的英文怎麼說

中文拼音 [jìnjiāoxìzájiāo]
近交系雜交 英文
inbred line cross
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 雜 : Ⅰ形容詞（多種多樣的; 混雜的） miscellaneous; varied; sundry; mixed Ⅱ動詞（混合在一起; 攙雜） mix; blend; mingle
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  1. Crossbred duroc was not better than pure ones for litter size at birth

    系間雜交公豬所配母豬的產仔數也與純系所配母豬的產仔數相近。
  2. Fingerprints of 5 strains of the inbred mice and 2 strains of the inbred rats was conducted using a nonisotopically hrp labeled jl - 02 by the second institute of the public safety bureau of china and southern blot hybridization, the author studied many fingerprints of the same dna, the different organic fingerprints of the same organism and fingerprints of parent and offspring. the patterns were completely different among the different strains and those of the samples from the same strain were completely identical

    採用公安部二所自行研製的jl - 02多位點探針對5個品系的近交系小鼠和2個品系近交系大鼠進行了dna指紋分析，經過對同一dna的反復製作dna指紋圖和同一個體不同組織進行的dna指紋圖製作及對親代和子代（同品系內和不同品系間雜交）間的dna指紋圖比較。
  3. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  4. After selected various high yielding and hybrid varieties, their nutrient uptake pattern, interaction among fertilizer, varieties and plant density should be investigated

    近年來，我國選育出一批主要作物的高產品種和雜交種，應當研究它們的需肥特性，研究施肥與這些新品種及其種植密度等不同措施的關系。
  5. Users of the preliminary edition ( now out of print ) will be interested to note several new chapters on complexity theory : chapter 8 on space complexity ; chapter 9 on provable intractability, and chapter 10 on advanced topics, including approximation algorithms, alternation, interactive proof systems, cryptography, and parallel computing

    早期版本的讀者將驚奇的發現新增的有關復雜性理論的章節：第8章，空間復雜性；第9章，不可證明性；第10章，高級話題，包括近似演算法，交替，交互推理系統，密碼學和并行計算。
  6. In summary, the exotic species can affect native bird species in four main ways, 1 ) predation of birds or eggs by the exotic mammals ; 2 ) competition for habitats and foods with exotic birds, and loss of genetic diversity by hybridization with the closely - related exotic species ; 3 ) direct and indirect alterations of native habitats and food resources, and predation by the exotic invertebrates ; and 4 ) loss and fragmentation of habitats for native birds through altering species composition and structure of native plant communities by exotic plants

    外來生物對鳥類的影響主要表現在以下幾方面： （ 1 ）外來哺乳動物對成鳥、幼鳥或鳥卵的捕食作用； （ 2 ）外來鳥類與本地鳥類競爭棲息地和食物資源，與當地的近緣種雜交而造成基因流失； （ 3 ）外來無脊椎動物改變本地鳥類的棲息環境和食物狀況，甚至直接捕食本地鳥類； （ 4 ）外來植物入侵改變入侵地的植物群落組成和結構，造成本地鳥類的棲息地喪失或破碎化，並通過改變入侵地生態系統的食物鏈結構而對高營養級的鳥類產生影響。
  7. The fault diagnosis of the analog circuits is an advanced synthesis intercrossed subj ect, which is an application technology absorbing the new theory, technology and method in other subjects and fields. in the past 40 years, it has developed a great deal of theory and approaches. but the approaches are limited to deal with fault diagnosis because of the variety and complexity of the analog circuits, especially the large - scale analog circuits with the tolerance or the soft fault. artificial neural networks ( ann ) which have been one of the most active research areas recently can be contributed to solve problems in various practical fields. in this paper, analog circuit fault diagnosis approach based on pattern recognition, and ann is expatiated

    模擬電路故障診斷是一門不斷發展中的綜合交叉性學科，是在不斷吸收其它學科和領域的新理論、新技術和新方法的基礎上向前發展的一門應用技術。雖然經過了四十多年的發展，也已經形成了一系列的診斷理論和方法，但由於模擬電路特別是有容差的大規模模擬電路故障的多樣性和復雜性，使得可用於診斷容差模擬電路的故障和大規模模擬電路軟故障的方法還十分有限。人工神經網路理論近年來取得了快速發展，已開始在各個研究領域廣泛應用。
  8. The yeast two - hybrid system is an effective method for the study of protein - protein interaction in recent years. it is widely used in the study of life science because it provides a genetic means of identifying proteins that physically interact in vivo

    酵母雙雜交系統是近年來發展起來的一種研究蛋白質?蛋白質相互作用的有效方法，由於它檢測的是一種體內的相互作用，自這一系統建立以來，就被廣泛地應用於生命研究的各個領域。
  9. Thus, it is difficult to find the voltage reference for the harmonic analysis. since acem are always operated near to the synchronous speed, the frequency of the excited voltage is very low, even to zero. therefore, this is the power harmonic suppression study of a complicated power supply system, in which the about harmonic general theories and methods are all inapplicable

    現代交流勵磁電機（ acem ）採用電力電子變流器作為勵磁裝置，其勵磁電壓諧波含量豐富，難于獲得諧波分析所需的電壓基準，同時交流勵磁電機經常工作在同步轉速附近，致使勵磁電壓頻率極低甚至為直流，通常的諧波檢測方法和理論都無法適用，因而這是一種目前尚未深入探討過的復雜供用電系統電力諧波抑制問題的研究。
  10. First, according to the orthonormal quality and the rational choice of working point of the sonar array three shafts frame, the structure of the models is predigested preliminarily ; secondly, according to the quality indexes and the coupling quality between frames, relatively small quantum is neglected. so the complex non - linear coupling models of the sonar array are predigested farther ; lastly, considering the characteristic of the model coefficient matrix, the methods of the low rank polynomial approach and the error simulation are introduced. so the models are predigested again

    首先從聲納基陣框架結構的正交性和工作點的合理選擇出發，使模型的結構得以簡化；其次根據系統性能指標及框架間耦合性強弱，忽略相對小量，對聲納基陣復雜的非線性耦合模型進一步簡化；最後考慮模型系數矩陣的特點，運用低階多項式逼近和誤差模擬的方法，實現了對模型的再次降階簡化處理。
  11. In the face of the complex political relations in recent years, china maintains that the two sides, the leaders of the two countries in particular, should act in the strategic and long - term interests, strictly abide by the principles enshrined in the three bilateral political documents and, following the principle of " taking history as a guide and looking to the future ", step up exchanges and cooperation and create conditions for steady and sound development of bilateral relations by removing obstacles

    面對近年來中日政治關系中出現的復雜局面，中國主張雙方、特別是兩國領導人應從戰略高度和長遠角度出發，嚴格遵循中日間三個政治文件確立的原則，堅持「以史為鑒、面向未來」 ，加強交流與合作，消除障礙，為兩國關系穩定健康地發展創造條件。
  12. In part one, after japan ' s twice oil crises, it draws its own energy strategy and described the rupture of petroleum pipeline between china and russia. it analyses the background of the cooperation between japan and russia ; in part two, in recent years, there being scrambles for petroleum pipeline among china ? japan and russia, the author sets force its own position and benefits on this question of each side and points out the reflection of the complicated international tense situation and the commercial benefits ; on part three, the author points that japan ' s energy diplomatic strategy and northeast asia strategy. on part four, analyzing the advantages and disadvantages, the author sets force the effect and prospects of the japan and russia ' s energy cooperation to northeast asia

    第一部分在簡要介紹日本兩次石油危機之後的戰略形成及在日、中、俄圍繞能源合作問題中，由於日本半路殺出，導致中俄輸油管線初步協議破壞，這是日本與俄羅斯進一步加強能源合作的原因;第二部分對近年來日?中?俄油氣管道之爭，深入闡述並分析各自所持立場，並指出這種大國之間的較量充分反映了當今國際社會復雜的地緣政治關系和商業利益格局;第三部分從能源和地緣戰略角度進一步指出日本對俄羅斯能源外交戰略及對東北亞戰略的關系;第四部分從分析東北亞區域能源合作有利和不利因素出發，闡述日俄能源合作對東北亞地區的影響及前景展望。
  13. Set up a magazines exchange relation and cooperation with nearly 10 countries including : america, germany, britain, france, etc

    與美、德、英、法等近10個國家軍隊建立了雜志交換或合作關系。
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