selection experiment 中文意思是什麼

selection experiment 解釋
育種試驗
  • selection : n. 1. 選擇;挑選;選拔。2. 拔萃;選擇物;精選物[品];文選。3. 【無線電】分離,(自動電話)撥號。4. 【生物學】選擇,淘汰。
  • experiment : n 實驗;試驗;嘗試 (of) a scientific experiment 科學試驗,科學儀器設備。 a new experiment in ed...
  1. Experiment research on floatation equipment selection in carnallite mine of salt field

    鹽田光鹵石礦選礦中浮選設備選型試驗研究
  2. Study on selection experiment of optimal crop intercropping with poplar

    楊樹間種最佳作物的選擇試驗
  3. The regeneration system of soybean cytoledon node and agrobacteriunr mediated transformation method is the first selection at present. in the second part of this experiment, the expression vector prok2 containing npt ii and ssnhx1 ( na + / h + antiporter ) gene from suaeda salsa was introduced into soybean cytoledon nodes by gene transformation mediated by agrobacterium tumefaciens, and kanamycin resistant transgenic p lants were obtained by screening in selective condition

    本實驗第二部分通過農桿菌介導法將含npt -和鹽地堿蓬na ~ + h ~ +反向轉運蛋白基因( ssnhx1 )的表達載體prok2導入大豆子葉節中,經過含km的篩選培養基連續篩選,獲得了ssnhx1轉基因植株,篩選劑卡那黴素的適宜濃度是50mg . l ~ ( - 1 ) 。
  4. ? as same as most other schizothoracinae fishes, qinghai - lake nakked car ps may be tetraploid that already were diploidization ; ? qinghai - lake nakked carps arose from some primitive barbinae fishes, which gradually became special population adapting to high altitude environment by involvement and natural selection, on protein electrophoresis, out of 20 protein loci among 132 individuals in the present experiment, only t mdh > amy est and pod showed polymorphism

    在蛋白水平上,共檢測了132尾裸鯉的20個遺傳座位,僅發現tf , mdh 、 amy 、 est和pod五個座位表現出多態性,其中, tf 、 mdh 、 amy和est四個座位均有一對等位基因;而pod座位表現出復雜的電泳圖譜,未進行深入分析。
  5. Through the experiment research on practical damaged element, considering the effect of durability damage of steel corrosion and crack on structural element function. for the maintainment and transform plans " selection and prevention of heavy accidents the paper put forward abundant basis. it ' s perfection and development will provide basis for scientific management of active structure

    分析可知:鋼筋銹蝕是造成結構承載力下降的根本原因,同時也找出鋼筋混凝土結構耐久性影響的因素,為合理選擇大修改造方案,防止重大事故等方面提供充分依據,它的完善和發展將為現役結構的科學管理提供依據。
  6. In order to select male nucleo - sterile new genotype, a tentative idea was put forward for the nucleo - male sterility to attach a tps ( thermo - photoperiod sensitivity ) and a selection strategy of combination of selection and identification, at the same time, the spring and summer sowing method were used to provide different environment conditions of appraising sterility and tps. the results indicated that ( 1 ) sterility could be appraised under the spring sowing environment and tps could be appraised under summer sowing environment. ( 2 ) under spring sowing environment, sterility could be selected, but not maintained. thereby, lines selected could only be selected as recorded selection method in the experiment. ( 3 ) and then, selection was carried out from spring sowing line selected into summer sowing in same line with tps to select plants. these plants through the intercrossing selection had been combined with sterility and tps. in this way, a new selection protocol for selection sterile line with tps was formed. it mainly involves the spring and summer sowing method, recorded selection method and the intercrossing selection method

    為了選育新類型玉米雄性核不育系,提出了為玉米核不育性添加溫光敏感性的設想和選擇與鑒定相結合的策略,同時應用分期播種的方法為作物提供不同的生長和發育的環境條件,以鑒定玉米雄穗的育性變化和對不同環境條件溫光的反應.研究結果表明,春播環境下可鑒定和選擇玉米的不育性,夏播環境下可鑒定和選擇其溫光敏感性.針對玉米核不育性難以找到保持系的特性,結合兩種播期選擇兩種性狀.但春播環境下選擇的不育性群體難以通過選擇單株來保持其不育性,為記錄性群體選擇.通過從春播入選的雜合不育性優良株系群體轉移到其對應的夏播溫光敏感性入選的同一優良群體中進行優良單株選擇,能逐漸使不育性和溫光敏感性相結合而選育出純合溫光敏不育系.這種新的選擇程序主要包括應用分期播種法、記錄性選擇法和春夏兩季交叉式選擇法,使含有不育基因的可育株系逐步累積不育基因並增加了溫光敏感性而育成玉米溫光敏不育系
  7. Feb at the national conference for selecting and sponsoring candidates for overseas studies, former state education commission made the decision to conduct, in the name of the csc secretariat under preparation of the state education commission, an experiment in jiangsu and jilin provinces in accord with the principle of open selection, equal opportunity to compete, expert evaluation, sponsorships based on academic excellence, signing a legal agreement before departure for study abroad, and compensation upon violation fo the signed agreement issued principles for the

    2月在全國出國留學人員選派工作會議上,遠國家教委提出了改革國家公費出國留學選拔管理方法的方案,決定實行「公開選拔平等競爭專家評審擇優錄取簽約派出違約賠償」的方法,以「國家教委留學基金管理委員會秘書處籌備」的名義負責實施,並在江蘇吉林兩省先行試點。
  8. Osmanthus fragrans cutting propagation experiment showed that there were evident differences between o. fragrans trend branch cutting rooting rates with different rooting drugs and concentration treatments, cutting in summer and in the morning was superior to that in autumn and in the afternoon, the popularization and application of 200 10 ^ ( - 6 ) of naphthylacetic acid treatment and selection of cutting in the summer morning were proper relatively in production

    摘要桂花?插繁殖試驗表明:桂花嫩枝?插不同生根素及濃度處理對生根率有明顯的差異,夏插、上午?插優于秋插、下午?播,生產上應採用200 10 ^ ( - 6 )萘乙酸生根素處理,選擇夏季的上午?插比較適宜。
  9. The fourth chapter presents a concept of infinite population according to the features of ccga, and designs some particular methods for adversarial problems solving based on this concept. these methods include shared fitness, gene linkage, self - adapted mutation, phantom parasite, elitist population, shared sampling and brood selection. then we give the explanation and argumentation of these methods in theory and in experiment

    第四章根據ccga的特點,提出了無限群體的概念,並在此概念的基礎上就對抗性問題設計了幾種獨特的方法,這些方法包括:共享適應值、基因連鎖、摘要自適應變異、虛幻寄生體、精英群體、共享采樣和同胞選擇等,然後從理論和實驗上對這些方法給予的充分說明和論證。
  10. In this article, several evaluation methods including performance test, user survey, tracking investigation and integrated evaluation are presented to evaluate the suitability of farm machinery through the exploration and practice on machine selection experiment of no - tillage seeder, and some questions in evaluation process are put forward and the corresponding solutions are also given

    本文結合免耕播種機選型試驗中,對免耕播種機進行的適用性試驗及評價方法的研究、探索和實踐,提出了採用性能試驗法、用戶調查法、跟蹤考核法和綜合評定法等方法對農機適用性進行評價,並對目前實施農機適用性評價存在的問題進行了分析,提出了相應的解決辦法。
  11. The hardware system is designed, which indudes the sensors selection and circuit ; the software system is explored, which can make the data collection, calculation save and curve plotted etc., it provides a good support for automotive road experiment

    設計了硬體系統,包括各類傳感器的選擇和處理電路;同時對軟體系統進行了設計,可以實現對數據的動態採集、計算、保存、繪圖等功能,為汽車路試提供了技術支持。
  12. It can be concluded from the experiment results that hatchery seed has lower genetic variation and large - scale hatchery seed releasing affects the genetic diversity of the natural population. the shrimp distributed along china coast in bohai sea and yellow sea may consist of more than one populations. the viral disease resistant ability of f. chinensis is proved to be genetically inherited and can be improved by genetic selection

    一通過對實驗結果的進一步分析認為:中國對蝦人工育苗的過程使後代群體的遺傳多樣性下降,人工培育苗種的大規模放流影響了自然群體的遺傳多樣性; ,分佈於我國沿海的中國對蝦可能由多個自然群體構成,還存在未被發現的種質資源:中國對蝦抗wssv病毒感染是由遺傳決定的,選育可提高中國對蝦對wssv的抗性。
  13. The software is able to be used for experiment teaching and selection of operational conditions for gas chromatography

    本軟體適用於氣相色譜分析模擬教學實驗和氣相色譜分析條件的選擇,使用效果良好。
  14. Selection experiment on the urgent conservation materials for the petroglyphs on the flower mountain, guangxi

    廣西花山巖畫搶救性保護修復材料的選擇試驗
  15. The authour investigate the dosing conditions and effect of the pac to the huanghe water - source, which includes the following four parts : the selection of the pac ; the confirmation of dosing scheme and effect of the pac ; the research of application of potassium permanganate in combination with pac ; the research of the pac ' s modification and the modified effectiveness. the experiment is mainly carried out on the pilot system in the jieyuan water plan of tianjin. the results of the reseach include the following : l ) the pac from zunhua plant is selected as the better carbon for the source water of tianjin through the experiment ; 2 ) through the pilot experiment we conclude that the pac ' s best adding point is the mixing tank and the better dose is 10mg / l, on which the codmn of filtered water can be decreased to 40 % and the effluent have no problem of odour and color ; 3the adsorbing experiment show that pac mainly adsorb the organic matters which molecular wt., distribution between 500 and 3000, and can adsorb organic matters whose molecular wt., distribution are bigger than 6000 if the dose of it is adequent ; 4 ) pac together with potassium permanganate can remove the organic matter more effectively than each of them alone, and reduce the rising trend of turbidity of the flotation ' s effluent due to adding pac ; 5 ) the thesis made a research on the surface properties and the adsorbing capability of the modified carbon by oxidizer : the modified carbon with 20 % h2o2 can remove more organic pollutants than the untreated one by 12 % when we add a higher dose of coagulant ; 6 ) the modification of reduction and loading metal ions are also sttldied, and drow the following conclusions : the modified carbon with 5 % ammonia can enhance the organic matter ' s removal effectiveness by 10 % to the tianjin source water than the untreated one, and the modified one with loading metal ion remove the organic matters from the tianjin source water better ( 8 % ) than the untreated one due to the strong affinity betwween the humic acid and copper ion

    本文的實驗主要是在天津芥園水廠的中試系統上完成的,論文的成果和結論主要包括: 1 )通過靜態實驗選定河北遵化活性炭廠生產的煤質炭為適合天津原水的炭種; 2 )中試實驗確定粉末活性炭的較佳投加點為混合池投加,較佳投加量為10mg l ,此時可使濾后水的cod _ ( mn )降低40 ,且可較好地控制濾后水的嗅味和色度; 3 )初步確定粉末活性炭對原水中有機物的吸附主要集中在分子量在500 - 3000范圍內,投量增大時可吸附部分分子量大於6000的有機物4 )中試實驗表明:粉末活性炭與高錳酸鉀聯用可取得較兩者單獨應用時對有機物更好的去除效果,且對因投加粉末活性炭而造成的氣浮出水濁度升高有一定的改善作用; 5 )研究並初步確定氧化改性對粉末活性炭表面性質和有機物的去除效果的影響:粉末活性炭的氧化改性會使其表面的酸性官能團大量增強,表面極性增加;經20的過氧化氫改性的活性炭在增大混凝劑投加量( fecl _ 3投量為15mg l )時對有機物的總體去除效果較原活性炭提高12 , 1次氯酸鈉改性活性炭對有機物的去除效果較原活性炭提高6 ; 6 )研究並初步確定還原改性、負載金屬離子對原水中有機物的去除效果的影響:經5氨水改性的活性炭可提高天津源水中有機物的去除率達到10 ;負載銅離子后的活性炭可提高對腐殖酸類物質的去除能力,一般可提高8左右。
  16. We investigate the whole process and technique details of micropiv, such as the micro scale flow mode making technique, and optimum velocity according to the existing test condition, and selecting of trace particle, the software interface of the image acquisition, the software interface, analysis of the specification parameters of the micropiv technique, and the selection of the key experiment parameters

    本文研究了micropiv試驗技術的全部過程和技術細節,如現有條件下微型流場的製作工藝、適合測量條件的流場速度、示蹤粒子的選擇、圖像採集的軟體介面等,分析了micropiv技術的性能參數和重要實驗參數的選取。
  17. This is a big complicated monitoring and control system, the article only discusses a part of the units, includes : the components of neutral beam injection and the requirements for monitoring and control system, the argumentation and selection of control scheme, the research of data acquisition system based on pci bus, the design and realization of hardware and software of dac, the means of concentrated data storage and management, the communication program design of subsystem under different mode and protocol. the last part gives some experiment system running data

    這是一個大型復雜的監控系統,本文只就其中的幾個單元的設計與實現展開討論,主要內容包括:中性束注入裝置的組成及其對監控系統的要求,監控系統控制方案的論證和選擇,基於pci總線的小型數據採集系統的研製,多功能數據採集卡的硬體和軟體的設計與實現,集中式數據存儲與管理的方法及其實現,多功能子系統之間在不同通信方式、不同傳輸協議下的通信實現及其程序設計。
  18. In order to validate the feasibility of fuzzy pattern recognition applied to the stress field instantaneous recognition and the accuracy of data - collection system, we design the bracket model and did a model experiment to prove the accuracy of data - collection system and the feasibility of fuzzy pattern recognition theory using data - collection system, then, we discuss the influencing factor in the selection of key point

    同時,為驗證模糊模式識別方法用於支撐鋼牛腿瞬時應力場識別的有效性可行性,及工程現場採用的數據採集設備的準確性,本文中設計出模型牛腿,並進行了模型實驗,並對實驗結果進行了系統地研究及分析。同時進行了牛腿上關鍵點選擇的參數分析的討論。
  19. An experiment reported in the paper explores the relationship between chinese students ' english proficiency and their communication strategy selection, and does prove that it is possible to improve chinese students ' communicative competence, which is one component of language proficiency by developing their communication strategic competence

    摘要通過實驗,探討了中國學生的英語水平和他們的交際策略選擇之間的關系,並證明?學生交際能力的提高可以通過提高他們的策略能力來實現。
  20. We studied many other hep experiment ’ s trigger systems, decided to use one software framework for both online event filter and offline data processing. the online event filter software is designed to have two parts : 1 ) the event selection, which can run in the offline data processing system independently. 2 ) the event selection controller, which is the interface between event selection and processing task

    我們調研了國外高能物理實驗的相關部分,採取在線事例選擇和離線數據處理使用同一軟體框架的模式,將在線事例選擇軟體分成兩個大的部分:一部分是可以獨立運行於離線環境中的事例選擇流程式控制制軟體( eventselection ) ;另一部分是將事例選擇流程式控制制軟體與在線環境下的事例篩選任務處理器( processingtask )結合起來的事例選擇控制器( eventselectioncontroller ) 。
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