random selected 中文意思是什麼
random selected
解釋
隨機抽樣-
In this work, some species of palmae cultivated in the xiamen botanical garden had been selected to be analyzed their genetic diversity with rapd ( random amplified polymorphic dna ) technique. according to the result of genomic dna amplified with pcr ( polymerase chain reaction ), genetic distance and similarity between different palm species were calculated on nei " s estimate of similarity and genetic distance. a primary but first time research at the phylogenetic relationships of some genera and species, the molecular classification and identification of some puzzling species of palmae was carried out through upgma ( unweighted pair group mean average ) cluster analysis of the genetic distance together with comparative study of the morphological structure characteristics
本文在初步調查分析了棕櫚科植物在我國的自然分佈、引種馴化情況以及該類植物在廈門地區栽培應用狀況的基礎上，首次採用rapd分子標記技術，對廈門萬石植物園引種的一些棕櫚科植物的遺傳多樣性進行了研究，根據pcr對基因組dna擴增的結果，用nei ' s相似性系數計算了不同植物間的遺傳距離和遺傳一致度，通過對遺傳距離的upgma聚類分析，並結合形態分類的特點，對棕櫚科植物的屬、種間的系統分類關系和一些疑難種的分類鑒定進行了初步研究。 -
To eliminate the serious random noises which exist in the analog sigals, the frequency spectrum of the signals are analyzed, then several digital filteration arithmetics are compared with each other and the best is selected
為消除測量信號中存在的比較嚴重的隨機干擾，在對測量信號作頻譜分析的基礎上，比較了幾種數字濾波演算法的處理效果，進一步提高了測量精度。 -
" the test for the methods of study of middle school students " is applied on the investigation of how the urban middle school students and rural middle school students get on with their study which is selected at random
本研究採用《中學生學習方法測驗》對城市中學初中學生與農村中學初中學生的學習適應性進行隨機取樣調查。 -
The second experiment adopted a 3 2 2 random factorial design with 60 subjects of fifth - grade. 30 excellent comprehenders and 30 poor comprehenders were selected
實驗二採用3 2 2三因素完全隨機實驗設計，被試為60名小學五年級學生，其中30名閱讀優生， 30名閱讀困難學生。 -
The whole study consists of two experiments. the fist experiment adopted a 3 2 random factorial design with 48 subjects of sixth - grade. 24 excellent comprehenders and 24 poor comprehenders were selected
整個研究由兩個實驗組成，實驗一採用3 2兩因素完全隨機實驗設計，被試為48名小學6年級學生，其中24名閱讀優生， 24名閱讀困難學生。 -
In this study three scales were used to measure a sample of 802 students selected from 4 middle schools by hierarchical random group sampling, and 766 available copies of scales were adopted to collect data which was processed with spss 10. 0
本研究採用量表測量法，以分層整群隨機抽樣法抽取樣本。從四所中學隨機抽取初中和高中14個自然班共計802人組成樣本，有效問卷766份。 -
Based on the study for the methods of structural reliability analysis, including monte carlo method, response surface method and stochastic finite element method, response surface method ( rsm ) is selected. based on the random analysis of aqueduct ' s frequent actions and resistances, by rsm method together with the fem method and form method, the reliabilities of its primary poles can be analyzed and the reliability of the structure be reached
利用此方法，在對渡槽常遇荷載的不確定性分析和抗力不確定性分析的基礎上，結合結構分析的確定性有限元法（ fem ）及可靠度計算的一次二階矩法（ form ） ，對桁架拱結構主要受力狀態構件進行了可靠度分析，從而對結構的可靠性進行了評價。 -
We apply this method to shanghai index, shenzhen index and a random selected stock ' s moving average index from jan, 1999 to apr. 2003 to test the accuracy of prediction
為了證明系統的有效性，本文對上證綜合指數、深證綜合指數、隨機選取的個股1999年1月年至2003年4月的實際數據進行了預測檢驗。 -
Through proper sampling design, the selected households for march and the first half of april together formed a separate and scientific random sample by themselves and data collected on them could be used to draw inference on the overall situation
透過恰當的樣本設計，三月至四月中的訪問住戶，組成一個獨立的科學性隨機樣本，所搜集得的資料可以用來推論整體的情況。 -
The research indicated that, if the secondary combustion chamber was looked on as a controlled object, with the adjusting valve as a input, the pressure and the temperature of a selected point on the inside wall of the combustion chamber as outputs, then such controlled system would be a strongly non - linear, time varying system with number of random disturbances, which resulted in huge difficulty to build an analyzed mathematics model for the spray burning of the liquid fuel, so that classic control methods were all invalid
研究表明，若將rbcc發動機的二次燃燒室視為一個控制對象，同時以燃燒室內壁面取定點處的壓強、溫度和調節閥的開度為輸入輸出變量，則該系統將是輸入?輸出特性非線性很強、隨機干擾嚴重的復雜時變系統。這導致建立燃油噴霧燃燒具體模型的很大困難，從而宣告了經典控制方案的失效。 -
The children gained a joyful and unforgettable experience in the air. while most of the participants are selected through a random draw, seats are also reserved for the under - privileged
部份名額預留給弱勢社群家庭成員，讓他們親身體驗空中暢游滋味，共度快樂旅程。 -
About 9 600 units in private residential buildings and 2 400 ntehs in selected recognized villages will be drawn at random
這項統計調查以隨機抽樣方式，選出約9600個私人屋宇單位及從選定的認可鄉村選出約2400個新界豁免管制屋宇作為訪問對象。 -
Twelve primers selected from 100 random primers amplified 254 frangments in 14 species of cymbidium, in which 243 segments are polymorphic. the rate of polymorphism was 95. 7 %. and all the segments were ranging from 200bp to 2200bp
從100個隨機引物中篩選出12個隨機引物，對蘭屬植物14種材料進行隨機擴增，共得到254條帶，多態性帶有243條，多態性百分率為95 . 7 。 -
From a cross 18 x 28 ( each from the superior tree from xianju county and pan " an county in zhejiang province ). 236 random oligonucleotide primers were screened and 33 primers were selected to generate rapd markers within a sample of 60 megagametophyte dnas
通過236個10bp的隨機引物或組合對6粒黃山松種子胚乳組織dna進行pcr擴增，共篩選出33個多態引物用於作圖。 -
About 11 600 units in commercial and industrial buildings will be drawn at random for enumeration and all the units in the twenty selected buildings will be enumerated
這項統計調查以隨機抽樣方式，選出約11600個于工商業建築物的單位作為訪問對象，及訪問所有位於被選定的二十間工商業建築物中的單位。 -
Based on the theories of nonlinear finite element monte - carlo stimulation techniques, mathematical methods for generating uniformly distributed n ( 0, 1 ) random numbers are described. a comprehensive evaluation method for uniformly distributed random number is presented. some good seeds have been selected out that can be used to generate uniformly distributed random sequences with better performance
本文以非線性有限元理論和蒙特卡洛隨機模擬理論為基礎，描述了均勻分佈的n （ 0 ， 1 ）隨機數產生的數學方法，並編制了計算機程序，對由軟體產生的均勻分佈序列的隨機數性能進行各種檢驗，檢驗成果是良好的，可用於產生各種概率分佈的隨機變量值。 -
Methods the survey was performed by questionnaire on the spot on random selected individuals and the data was analyzed by statistic software
方法採用科普活動現場隨機抽樣、現場問卷的調查方法，運用軟體包進行統計分析。 -
These shall be carried out on poles selected at random by the purchaser or the engineer at the minimum rate 3 pieces of poles manufactured
這些測試將在由購買者或工程師在生產出的點中任選的三個以上點中進行 -
Methods after a general cross - sectional hygienic survey which was carried out by filling in questionnaires, the source water 、 off - work water and pipe water sampled from 20 % subjects which were selected by stratified sampling and simple random sampling were tested
方法按設定的調查內容，先採用橫斷面現場普查填寫調查表的方法進行衛生學調查，然後按20 %的比例採用分層、隨機抽樣的方法，對水源水、出廠水、末梢水進行檢測。 -
By sequencing random - selected clones from the library and using bioinformatics, 54 novel expressed sequence tags ( ests ) were obtained, in which there were 14 full - length cdnas, including peroxiredoxin gene, hmg - box gene, ubiquitin gene, signal recognition particle, acetyltransferase gene and lysozyme gene
有14個克隆包含有完整的開放閱讀框，其中包括抗氧化物酶基因prx 、 dna結合蛋白基因、泛素基因、信號識別蛋白基因、溶菌酶基因和乙酰基轉移酶基因等具有重要生物學功能的基因。
分享友人