natural study 中文意思是什麼

natural study 解釋
自然課
  • natural : adj 1 自然界的；關于自然界的。2 天然的；未開墾的；野生的。3 固有的 生來的 天賦的（opp acquired）...
  • study : n 1 用功，勤學；〈常 pl 〉學習；研究 （of）; 研究對象；研究項目；值得研究的問題；學問，學業，學科...
  1. The scientific study of humanities and social science must comply with what the admissive criteria of natural science

    人文社會學科研究中自身的科學性是按照自然科學的標準由自然科學賦予和認可的。
  2. Transmission electron microscope and hplc were adopted to study cellular ultrastructures and aloin contents of aloe vera l. growing under shaded condition and natural light

    摘要分別用透射電子顯微鏡技術、高效液相色譜法研究了生長在遮蔭和自然光照條件下庫拉索蘆薈葉片的超微結構和蘆薈素含量。
  3. Objective to study and compare photic stabilities among extracted black rice, amaranth and grape pigment from natural products

    摘要目的從天然產物中提取黑米、莧菜紅、葡萄紅這三種花青素類色素，並比較它們的光穩定性。
  4. It is important that study gamma - ray spectrometry of field rock and soil in the earth ' s crust. its energies range between 30kev and 3000kev, where there is much information of natural radioactive nuclides, such as uranium, thorium, potassium, and information of artificial radioactive nuclides, such as cesium, americium, cobalt, and information of the results in interaction between gamma - ray and earth ' s crust

    研究表明：野外地面射線能譜測量主要研究地殼巖石土壤中產生的能量約為30kev 3000kev的射線，這裡面包含著鈾、釷、鉀等天然放射性核素信息，核工程活動產生的大量人工放射性核素信息以及射線與地殼相互作用產生的相關信息。
  5. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。
  6. The thesis, application environment study of animalcule fermentation process modeling and controlling, is a part of the project, application environment study of antibiotic fermentation process modeling and controlling which is sponsored by natural science fund of tianjin city

    本課題「微生物發酵過程建模及控制開發環境的研究」是天津市自然科學基金資助項目「抗生素發酵過程建模及控制開發環境的研究」的子項目。
  7. The reproductive characteristics and population structure of artemisia ordosica, hedysantm scoparium, caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area. stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition. the study showed that : the artificial - natural vegetation built with sandbreaks and plants is stable in shapotou area

    通過對沙坡頭人工固沙植被區主要建植種群檸條（ caraganakorshinskii ） 、花棒（ hedysarumscoparium ）和油蒿（ artemisiaordosica ）的繁殖特性及種群結構的研究，以及自然侵入的一年生草本植物小畫眉草（ eragrostispoaeoides ）和霧冰藜（ bassiadasyphylla ）繁殖特性的研究，探討了在植被的持久性和變異性，分析評價了主要受惡劣環境壓力下的人工固沙區植被的穩定性。
  8. Three methods, namely, community species composition similarity analysis, community composition similarity analysis, and community characteristic similarity analysis, were employed to study the similarity of insect pest - natural enemy communities of three rice types ( early rice, middle - season rice and late rice ) and their three development stages ( tilling stage, boot stage and milk stage ) in the yangtze - huaihe region of anhui province

    摘要採用群落種組成相似性分析、群落組成相似性分析和群落特徵相似性分析3種方法，研究了安徽江淮地區早稻、中稻、晚稻3種稻型及分蘗、孕穗、乳熟3個生育期害蟲天敵群落的相似性。
  9. Development in study of the natural - carotene

    胡蘿卜素研究開發動態
  10. Rapd ( random amplified polymorphic dna ) technique was used to study the genetic structure and genetic differentiation of the natural population and the hatchery stock of chlamys farreri. amplifications with 20 10 - base primers under predetermined optimal reaction yielded 153 reproducible amplified fragments ranging from 200 to 3000bp. the mean proportions of polymorphic amplified fragments of natural population and the hatchery stock were 73. 2 % and 70. 6 % respectively, and the mean hetreozygosities of them were 0. 27 and 0. 26 respectively

    在對20個野生櫛孔扇貝和20個養殖櫛孔扇貝的基因組dna的檢測中， 20個隨機引物共擴增出153條清晰可分辨的dna片段，片段大小在200 3000bp之間，其中野生種群和養殖群體多態性片段分別為112和108條，多態位點比例分別為73 . 2 %和70 . 6 % ，雜合度分別為0 . 27和0 . 26 。
  11. 8th joint symp. computational linguistics, nanjing, 2005, pp. 217 - 220. 54 wang j b, du c l, wang k z. study of automatic abstraction system based on natural language understanding

    國內研究者探索了基於實例無指導學習方法互信息計算詞匯向量空間基於依存分析與貝葉斯分類模型結合等各種方法。
  12. Study on graft copolymerization of degraded natural rubber latex

    降解天然橡膠膠乳的接枝共聚研究
  13. The paper describes isn as a nonlinear dynamic complexity system, and with self - organization characteristics. next, the paper constructs the structural model of ecological industrial chain by imitating the producer, consumer and decomposer in natural ecological system, and analyses the resources flow from the viewpoint of value chain. based on the theory of byproduct exchange, the paper put forwards four kinds of operation model of isn, and analyze them hi detail by using of the case study

    模仿自然生態系統中的生產者、消費者和分解者構建生態產業鏈結構模型，從價值鏈角度分析了其中的資源流動；提出了生態產業鏈活性因子的概念，並運用這一概念對生態產業鏈的形成機理進行分析；基於副產品交換的特點，提出四種工業共生網路運作模式：依託型共生網路，平等型共生網路，嵌套型共生網路和虛擬型共生網路；通過對工業共生網路中資源流動的分析，揭示了副產品交換規律。
  14. Study on the community ecological characteristics of defoliated broadleaved forests of shiren mountain natural reserve

    河南省石人山自然保護區落葉闊葉林群落生態特徵
  15. The following conclusions can be drawn from the study : ( 1 ) water resource pricing can reflect the scarce natural resource, water resource accounting, water resource property rights, environmental diseconomy

    研究結果表明： （ 1 ）水資源價格應反映出稀缺性、水資源核算、資源產權、外部不經濟性。
  16. Floristic study on seed plants of qianfoshan natural reserve

    千佛山自然保護區種子植物區系特徵研究
  17. In this thesis study, graphite nanosheets were effectively prepared from natural graphite flake. fabrication of graphite nanosheets with nylon 6 via an in - situ polymerization approach led to the nylon 6 / foliated graphite nanocomposites

    通過原位聚合復合技術，將石墨納米薄片分散於尼龍6基體中，構造了尼龍6納米石墨納米導電復合材料。
  18. We can get the unqualified light hydrocarbon back to fractional tower to resume fractionating which greatly insures the quality, we combine the science and technology tackle project from da qing natural gas company - the research on microcomputer detection and control system in light hydrocarbon blending crude oil, analyze the machining technology of production device in gas disposing station, study the physical and chemical character of impurity blending in the light hydrocarbon and establish the detection scheme finally

    並讓不合格的產品重新回到分餾塔中進行重新分餾加工，以確保產品質量。本文結合大慶天然氣公司的科技攻關項目? ?輕烴含原油微機測控系統研製，對一分公司油氣處理站的輕烴生產設備進行了生產工藝流程分析，同時也對輕烴和混入的原油雜質進行物理和化學性質的分析，確立了監控設計方案。
  19. Comprehensive study indicates the dark, 50 - 300 m thick upper permian series, which is rich in the organic material ( om ) and biota, is beneficial to formation and protection of petroleum and natural gas. moreover the stratigraphy possess with better reservoir ability. the reservoir distributed in shallow glacis along beichuan tongkou - guangyuan changjianggou, he 12 well - she 1 well - jiange - cangxi yongningpu - long 4 well - bian 1 well in wujiaping stage and in platform edge beach along beichuan tongkou - jiangyou shuigentou - jiange - cangxi yongningpu - nanjiang

    綜合以上，本文認為研究區上二疊統地層厚50 ? 300m ，顏色較深、生物含量多、富含有機質，並且該套地層自形成后，大多直接進入埋藏成巖環境，是一套十分有利於油氣的形成與保存的地層；同時該套地層的局部層段具有一定的儲集性能，在吳家坪期儲層主要分佈在北川通口?廣元長江溝、河12井?射1井?劍閣?蒼溪永寧鋪?龍4井?扁1井一帶，在長興期儲層主要分佈在北川通口?江油水根頭?劍閣?蒼溪永寧鋪?南江一線。
  20. The museum has three layers with a total building area more than 40 thousand m2, owning about 40 million specimens of plants, animals, rocks and minerals in all places of the world, including more than 7 million welwitschiopsida fossil specimens and 500 thousand kinds of books in the library and a large amount of natural study manuscripts and pictures in the earlier period

    博物館共分三層，總建築面積4萬多平方米，擁有世界各地動植物和巖石礦物等標本約4000萬號，其中古生物化石標本700多萬號，圖書館有書刊50萬種，並保存著大量早期的自然研究手稿和圖畫等珍貴品。
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