群體試驗 的英文怎麼說

中文拼音 [qúnshìyàn]
群體試驗 英文
population experiment
  • : Ⅰ名詞(聚在一起的人或物) crowd; group Ⅱ量詞(用於成群的人或物) group; herd; flock
  • : 體構詞成分。
  • : 名詞(古代占卜用的器具) astrolabe
  • : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
  • 群體 : 1. [生物學] population; colony2. [社會學] group
  • 試驗 : trial; experiment; test
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. A rabbit was infected with a cloned yntatl, blood was collecting from from the rabbit every 3 days after infection within 30 days, 10 clonal trypanosome populations were gotten, infecting a new rabbit by the last non - cloned trypanosome population. repeated above all, thus infected 5 rabbits sequentially. twenty different vats ( variant antigen type ) were monitored and characterized from those fifty mono - clonal populations by indirect immunofluorescence test ( ift ) and avidin biotin enzyme immunoassay ( abc - eia )

    用伊氏錐蟲雲南水牛單克隆株yntat1感染兔,感染后30天內,每3天從兔血中分離錐蟲並單蟲克隆,最後一個未單蟲克隆的蟲株感染另一隻兔,重復以上操作,這樣順序感染5隻兔子,共獲得50個單克隆錐蟲種( tp ) ,經間接免疫熒光和abc酶標鑒定共為20個抗原性互不相同的抗原變異( vats ) 。
  3. Experiment shows that the antigen extracted by autoclave is best for dot - ppa - elisa. applying the x2 test, optimal concentration of antigen was determined, and the optimum dilution of enzyme hrp - spa was 1 : 10. the high specificity of dot - ppa - elisa was proved by the specific blocking test, and also by the cross - reaction test in which the diaphragm does not react with the antibodies against salmonellosis, pasteurellosis, chlamydiosis, hcv, ppv, brucellosis, erysipelas suis, colibacillosis, prv

    中對多種方法提取的診斷抗原進行了比較、篩選;確定了dot - ppa - elisa的最佳工作條件;測定了st - 171株的免疫豬血清抗及c、 2型人工感染豬血清抗效價,並初步確定了該方法的陽性標準。
  4. They, using agglutination, complementfixation, and precipitate tests, divided rhizobium cultures from 18 legumes into nine characteristic serological groups.

    他們用凝集作用,補結合和沉澱素把從18種豆科植物分離出來的根瘤菌培養物分成9個具有特點的根瘤菌血清類
  5. First, three isozymic systems ( lactate dehydrogenase ( ldh ), esteraes ( est ), malate dehydrogenase ( mdh ) ) extracted from threepopulations of mandarinfishes were detected by discontinuous vertical plate polyacrylamide gel electrophoresis ( page ). several loci were tested but none polymorphic locus was detected in qiupu river population. the results showed that : ldh can be used as biochemical markers to identify these three populations of mandarinfishes

    首先,本採用聚丙烯酰胺凝膠電泳( page )對我省三個水域鱖魚3種同工酶( ldh 、 est 、 mdh )的不同基因座位進行了檢測,結果表明: ldh同工酶可以作為區分秋浦河鱖魚、長江鱖魚兩個與萬佛湖鱖魚的生化遺傳標記;其次,運用rapd技術分析了三鱖魚的基因組dna的多態性。
  6. The noise constantly is not affecting our normal life, for example ; just repaired the family, to the quiet at dead of night building about the water pipe noise, has caused you to be unable normally to rest, the senior citizen, the neurasthenia, the heart was not specially good and so on the community, was is unable to rest, the saint porch company produced " the down - flow pipe sound insulation wrap " the product, fundamentally has solved this problem, this product has used the advanced sound insulation, the sound absorption, the material, passed through the specialized technical many years research development, and experimented after the beijing ten plots different levels owner, the sound - insulated effect achieved above 90 %, satisfaction rate reached above 99 %, did not have an example suit, received the owners universal welcome

    噪音無時無刻不在影響著我們正常的生活,例如;一個剛剛裝修完的家庭,到了夜深人靜樓上下水管的噪聲,使你無法正常休息,特別是老年人,神經衰弱,心臟不好等,更是無法休息,聖軒公司生產的「下水管隔聲套」產品,從根本上解決了這個問題,此產品採用了先進的隔音,吸音,材料,經過專業技術多年的研究開發,並經過北京十個小區不同層次業主,隔音效果達到90 %以上,滿意率達99 %以上,無一例投訴,受到業主們普遍歡迎。
  7. In this paper two - generation reproduction toxicity of fenvalerate, a - cypermethrin, chlorpyrifos, and triazophos was tested in a 21d period with water flea, daphnia magna, . the toxicity indicator included longevity, body length, days to first brood, days to first pregnancy, number of youth per female, intrinsic rate of natural increase ( r ), and number of broods per female. accordingly, the dose - response relations and relations between the chronic responses and enzyme levels were investigated

    為了確定水蚤內生化指標與慢性毒害效應之間的關系,特別是在低濃度暴露狀態下生化指標改變的生物學意義,以便能更準確預測早期農藥對水蚤種的潛在危害,本文以浙江省常用殺蟲劑氰戊菊酯、高效氯氰菊酯、三唑磷和毒死蜱進行了大型蚤( d . magna )的急性和慢性毒性(包括子代水蚤的恢復) 。
  8. Represented by stone, founder and legend groups, a batch of new technology industrial groups with fairly large scale and strength, such as " the first twenty strong enterprises " and " the first fifty excellent enterprises ", have become the prop of bez

    以四通方正聯想為代表的「 20強」 , 「 50優」等一批具有相當規模和實力的新技術產業已成為北京區的支柱力量。
  9. These results supply a gap in study on. results of sensitive experimentations reveal that the deflection of tc track increases, while variation of tc pressure is same as experiment b, if the height of zhoushan archipelago terrain doubled. if bigger islands of zhoushan archipelago are set as a part of mainland, the deflection of tc track is same as experiment b, while weakening of tc pressure is fast than experiment b. these result also confirm main mechanisms of terrain effects

    敏感性blz和bmz的結果表明,舟山島的地形高度增加一倍后,熱帶氣旋接近舟山島時運動路徑的南偏程度要增大,但強度變化與b相似;將舟山島中幾個較大的島嶼與大陸連結成一后,熱帶氣旋接近舟山島時運動路徑的南偏程度不變,但強度減弱卻比b快。
  10. We concludes that the selected herbicide for smooth cordgrass does not obviously affect community composition and the habitats of benthic species, the coherent variation trend of benthic community composition correlates with time between experimental zone and controlled zone

    這表明互花米草防除藥物對底棲生物落組成結構及其生境的干擾不大,區與對照區底棲生物落組成結構總一致的變化趨勢與時序有關。
  11. This paper undertakes a research on control center and dispatching station and presents a practical software design solution against the background of the development of digital trunking experimental system

    本論文以數字集系統的開發為背景,對tetra系統控制中心和調度臺進行研究,提出一種切實可行的調度臺軟設計方案。
  12. 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
  13. Result and conclusion : there are obvious differences in sprouting, lamina spreading, bolting and " sprout tumble ", three times of " sprouting " and so - called " sprout tumble " and two fast - growing periods for plants in most of the populations in spring and autumn respectively were observed within a year, including mass bolting in may

    結果與結論:半夏各居在出苗、展葉、抽薹及倒苗期等生長節律方面存在著差異:大部分半夏居在本栽培條件下具明顯的3次出苗和3次倒苗現象,並且在年生長期內表現出春秋兩個生長高峰期;從抽薹開花時間看,大部分居在5月有1個抽薹開花高峰期,但具起始和延續時間各居間存在著較大的差異。
  14. In order to adapting to the challenge of new military revolution oriented from the information technique, speed up our army information - based construction, the thesis make a design of the conducting and controlling network in the armor mechanization troops. included in the “ group army information - based experiment for military revolution ”, according to the basic regulation of the information processing, the network breaks the original tree - scheme network structure and sets up a principle grid architecture, which realizes the platform of vehicle - to - vehicle, crossing organization or arms of services, and meets the command of synthesizing function unit, integrating system and sharing the information and network construction in the transformation period of army constructing, by the means of obtaining, delivering, processing, utilizing and feed - backing information

    為適應以信息技術為核心的世界新軍事革命的挑戰,加快我軍信息化建設,本課題就適應轉型期的陸軍指揮控制網路建設的需求,在集團軍小型架構下,對裝甲機械化部隊野戰指揮控制網路進行設計,旨在打破原有的樹型結構,按照信息流程的基本規律,構建一個縱向到單車、橫向跨建制與兵種,具備信息獲取、信息傳輸、信息處理、信息使用和信息反饋功能的原理性區域柵格狀的新型指揮控制網路,實現功能綜合化、系統一化、信息共享化的要求。
  15. From trial of different density and collocate, it can be known that planting with narrow line and proper density can improve light penetration of soy bean colony and space distribution and has a better canopy structure, enhance colony solar utilize rate, thereby, increases soy bean colony productive ability and gains a higher yield

    摘要通過不同密度和寬、窄行距配置可知,大豆在保持合理密度下,實行窄行密植,可改善大豆植株的透光性和葉面積的空間分佈,具有較好的冠層結構,提高了光能利用率,從而提高大豆的生產能力,獲得較高的產量。
  16. A satellite experiment involving combinations of n and k with and without fym and zinc on yield production of rice and another experiment on interaction of plant population and fertilizer levels on yield of groundnut have also been conducted

    此外在水稻上還進行了氮和鉀施或不施廄肥和鋅組合因素的輔助,另一是關于密度和施肥水平處理對花生產量的影響。
  17. Results : twenty - five observational studies ( 14 cohort and 11 case control studies ) that measured blood or toenail selenium concentrations and 6 randomized trials that evaluated supplements containing selenium met our inclusion criteria

    結果:有25個檢測血或趾甲中硒濃度的觀察性研究( 14個研究和11個病例對照研究)和6個評價含硒補充劑的隨機符合我們的選擇標準。
  18. The main contents are as follows : ( l ) through theoretic analysis and flume experiments, the characteristic of water resistance through frames is researched, and transforms relation between resistance coefficients and manning ' s roughness coefficients is established, and then experiential formula of manning ' s roughness coefficients is fitted

    主要研究內容如下: ( 1 )通過理論分析和水槽,研究了穿越四面框架水流阻力系數的變化規律,建立了阻力系數與框架等效曼寧糙率系數的轉換關系,擬合出了糙率的經計算公式。
  19. In this prospectie, open - label, randomized, controlled trial, we enrolled 21 high immunological risk patients ( i. e., panel reactie antibody > 20 % or preious transplant )

    在此前瞻性開放隨機對照中,我們納入了21例免疫高危患者(例如,此反應性抗> 20 %或者是再次移植患者)
  20. Monte carlo simulations were applied to compare the reliability of new methods systematically. the experiment data collected in 1999 and 2000 through permanent f, population of rice were analyzed by computer software developed in this study

    用montecarlo模擬對新方法的可靠性逆行了系統的比較研究,採用本研究開發的計算機應用程序軟分析了1999年和2000年搜集的水稻永久f _ 2群體試驗數據。
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