crossing selection 中文意思是什麼
crossing selection
解釋
橫跨選擇-
This paper summarized the inheritance and variation of main biological and economic characters in rape progeny from hybridization and distant crossing, inquired into the selective mating of hybrid parent and the selection of hybrid progeny, analyzed the problems which had existed in rape distant crossing breeding, and put forward some ideas for accelerating the stability of characters in distant crossing progeny
概述了油菜品種間雜交後代及遠緣雜交後代主要生物學性狀和經濟性狀的遺傳變異現象；對雜交親本的選配及雜種後代的選擇進行了探討，分析了油菜遠緣雜交育種中存在的問題，就加速遠緣雜種後代的穩定提出了一些見解。 -
It is applicable to various structural distribution networks. while resolving the " large area restoration ", the genetic algorithm execute three same and simple genetic operators : selection, crossing and mutating. it make a self - adaptable and probability overall searching under the leading of fitness value in the whole searching scale until acquiring the best result
在求解網路故障后重構問題時，互動式模糊遺傳演算法通過循環執行相同的、極其簡單的選擇、雜交和變異三種遺傳操作，並在適應度函數值的引導下在搜索空間進行自適應概率性全局搜索，直至獲得全局最優解。 -
Selection and application of construction plan for crossing point of road and inclined shaft at same seam
同一煤層平巷與斜巷交叉點施工方案的選擇應用 -
The whole colony is divided into some colonies and they have evolution independently. selection operator, crossing operator, mutation operator and some parameters setting are advanced
設計過程中，將整個群體劃分為幾個子群體，各自獨立進化，選擇運算元、交叉運算元和變異運算元以及其他參數都做了相應的改進。 -
To compensate the shortage of the bigger test set of pure ant algorithm, the method of crossing ant algorithm and genetic algorithm is presented. meanwhile, the implementation methods of the objective function, selection operator, crossover operator, and mutation operator are given, and the test results are compared with the results of ant algorithm, based on standard sequential circuits iscas ' 89
為彌補單純採用螞蟻演算法進行測試矢量生成時，測試矢量集過大的缺點，摘要提出了螞蟻演算法和遺傳演算法交叉的測試生成方法，給出了遺傳演算法的目標函數、選擇運算元、交叉運算元、變異運算元的實現方法。 -
Associated with a practical example of pipeline crossing with directional drilling technique in yizheng - changling crude oil pipeline, this paper analyzes the characteristics of crossing through rocky stratum with directional drilling, deliberates the stratum status, drilling machine selection, drilling tool assembly, direction control, mud control ; drilling process as well as emergency dealing scenarios at the stages of guiding - hole drilling, aperture expanding and back - towing
摘要結合儀征長嶺原油管道洪湖長江定向鉆穿越工程實例，分析了管道定向鉆穿越長距離巖石層的特點，論述了定向鉆穿越巖石層的地層狀況、鉆具組合、控向措施、泥漿控制、鉆進工藝以及導向孔鉆進、擴孔、回拖階段的應急預案，針對在鉆導向孔過程中因泥漿壓力高、信號線多次出現被高壓泥漿沖壞、造成控向信號不穩定甚至中斷的情況，對信號線的安裝提出了改進措施。 -
Scheme selection of crossing on yellow river in first - stage of middle route south - to - north water transfer project
南水北調東線一期穿黃河工程安全監測設計 -
Comparison and selection of routes of yellow - river - crossing works
穿黃工程線路比選試驗研究
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