改造雜交 的英文怎麼說

中文拼音 [gǎizàozájiāo]
改造雜交 英文
improve crossing
  • 改 : Ⅰ動詞1 （改變） change; transform 2 （修改） revise; alter; modify 3 （改正） rectify; correct 4 ...
  • 造 : Ⅰ動詞1 （做; 製作） make; build; create; produce 2 （假編） cook up; fabricate; concoct 3 [書面語...
  • 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
  • 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...
  • 改造 : transform; reform; remould; remake
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  1. Under the influence of original formation, tectonic reconstruction, superficial and epigene - action, network of structure planes was created in rock mass, accordingly complicated the rock mass structure

    由於受原生建造、後期構造改造和淺表生作用的影響，巖體中常發育多組裂隙，形成相互交切的結構面網路系統，使巖體結構復雜化。
  2. 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
  3. The following new knowledge are acquired : a ) the cu background of stratum and jinningian alkali basite is abnormal high, which could be liberated from those rocks during alteration. cu et al. minerogenetic elements, which main came from magmatic rock, some from stratum ( yinmin formation and luoxue formation ) and its basement rocks

    礦床中cu等成礦物質來源復雜，以深源為主，部分來源於地層（因民組紫色層和落雪組白雲巖）及基底地層；礦區內的退色蝕變作用可能是混合流體堿質交代改造作用的結果，對銅礦形成影響明顯，是銅礦化的標志； 2
  4. 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。
  5. The modified sequence was cloned into binary vector pbi121. the constructed expression vector was named pbi121 - bar, then transferred into agrobacterium tumefaciens lba4404 by triparental crossing. thus the project bacterium has been successfully constructed

    改造后的目的基因克隆于真核表達載體pbi121 ，構建表達載體pbi121 - bar ，通過三親雜交法將真核表達載體pbi121 - bar轉入農桿菌lba4404 ，成功構建出工程菌。
  6. This paper analyzes how structure characteristic of old concrete pavement affects the load stress of asphalt overlay by the three dimensions finite element analysis program - adina. ( 2 ) the asphalt overlay design in rehabilitation of old cement concrete pavement asphalt overlay design not only relates the distress, structure characteristic, traffic and environment of the old pavement, but also requires reasonable mechanics model, correct material parameter, effective measure of preventing reflection cracking, and so on

    （ 2 ）舊水泥混凝土路面瀝青罩面改造中瀝青罩面層的設計舊路改造的罩面設計方法不僅涉及舊路面的損壞、結構狀況、交通狀況、環境因素，而且還需要合適的力學分析模型、正確的材料參數、有效的防反射裂縫措施等，內容廣泛、復雜多變，至今尚未有成熟的設計方法。
  7. In order to speed up the agriculture structure adjustment, we shall adopt a policy if " science and technology promote forestry and husbandry. " we will absorb foreign investment in feed flavors, health care products made of ginkgo leaves, forestation of quick growing trees, forestry disease protection and reforestation if yuntai forestry, reform of low vield fruit orchards, hvbridization of goats, feed research for aquatic products, new medicine development for animals, feed additives development. this may improve the product quality and competition, and also speed up the development of diversified economy

    加快農業結構戰略性調整，大力實施科技興林、科技興牧戰略，我局擬對飼料風味劑的開發應用、銀杏葉保健晶系列開發、營林速生豐產林、雲臺山森林病蟲害防治暨更新造林、低產果園改造、波爾山羊雜交改良、水產飼料研製、新獸藥開發、新飼料添加劑研製開發等項目進行招商，以進一步提高多種經營產品品質和市場競爭力，加快多種；經營的發展。
  8. Research and application of genetic expression programming algorithm based on uniform - design a new evolutionary algorithm named uniformdesign genetic expression programming ugep based on uniformdesign was proposed, which improved the way of generating initial population and also improved hybrid crossover operators. theoretic analysis proves.

    提出了一種基於均勻設計的基因表達式編程演算法ugep ，該演算法對經典的gep演算法做了以下改進：利用混合水平均勻表的構造對初始種群的產生進行改進，保證了解分佈的均勻性引入自適應多親雜交運算元，用均勻優化代替隨機進化。
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