natural key 中文意思是什麼

natural key 解釋
自然分類特徵
  • 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)...
  • key : n 1 鑰匙。2 要害,關口,要沖。3 關鍵,線索,秘訣;解法。4 (外國書的)直譯本,圖例,題解,圖解,...
  1. The natural science foundation of china ( " nsfc " ) has played a key role in promoting and supporting the center. the center promotes interdisciplinary and international collaborative research with focus in functional genomics, exocrine physiology, reproductive biology, immunology and new drug development ( including tcm ). the center has gained the support of nsfc, rockefeller foundation, the research grants council and it fund on a number of collaborating programmes

    該中心提倡跨學科研究和國際合作,研究重點是與上皮相關的功能基因研究,外分泌生理學、生殖生物學、免疫學及藥物開發(包括中草藥) ,並已獲國家自然科學基金委員會、美國洛克菲勒基金會、香港研究資助局、創新科技署等支持開展多個合作項目。
  2. Key design points of compressive natural gas filling station

    壓縮天然氣加氣站設計要點
  3. Beige color a b grade pig grain palm, natural color cowsplit back driver glove with key - stone thumb, inseam elastic at back, full socket boa lining

    高州祥和手套有限公司產品展示豬青掌牛二層背套里揸車花生粒捆邊
  4. Firstly, a natural number chaotic sequence is created with the key. then the image matrix is transformed with this chaotic sequence, using the magic cube transformation. the results indicate that the proposed algorithm can get a satisfying effect

    提出了一種在小波域內的基於混沌序列的模運算數字圖像加密解密演算法和基於混沌序列的魔方變換數字圖象加密解密演算法。
  5. A vertical piano cadby with exposed keyboard, its closed coffin supporting a pair of long yellow ladies gloves and an emerald ashtray containing four consumed matches, a partly consumed cigarette and two discoloured ends of cigarettes, its musicrest supporting the music in the key of g natural for voice and piano of love s old sweet song words by g. clifton bingham, composed by j. l. molloy, sung by madam antoinette sterling open at the last page with the final indications ad libitum, forte, pedal, animato, sustained, pedal, ritirando, close

    一架立式鋼琴凱德拜牌205 ,鍵盤露在外面。上頂蓋關得嚴嚴實實,擺著一雙淡黃色婦女用長手套,一隻鮮綠色煙灰缸里是四根燃盡了的火柴,一根吸過一截的香煙,還有兩截變了色的煙蒂。譜架上斜搭著一本古老甜蜜的情歌g .克利夫頓賓厄姆作詞,詹萊莫洛伊配曲,安托瓦內特斯特林206夫人演唱g大調歌曲
  6. Progress on the key enzymes and related genes of natural rubber biosynthesis pathway from hevea brasiliensis

    巴西橡膠樹天然橡膠生物合成中關鍵酶及相關基因研究進展
  7. On the basis of achieving the national key research projects on sichuan basin carried out from the sixth five - year plan to the ninth five - year plan and in combination with the research results finished by our predecessors, such a complicated problem is discussed from four aspects in considera tion of the exploration situation of the basin and the geological laws of natural gas distribution, and of opening up new realms

    筆者在參與四川盆地"六五" "九五"國家重點攻關項目基礎上,結合前人研究成果,從分析盆地勘探現狀、總結天然氣地質規律、開拓新領域這一思路,從四個方面探討這個復雜問題。
  8. The article takes a 600mw natural cycle drum boiler ( soot blow using steam ) as investigating object, establishes soot accumulation loss and soot blowing energy loss models for its water cooling wall, superheater, economizer and air preheater respectively, set up instructions for soot blower operating. simulating calculation results are compared with site data to verify usefulness of key models. the article introduced the operation optimizing design of soot blowers of yanzhou no2 power plant based on theoretical research

    本文以600mw汽包自然循環鍋爐(蒸汽吹灰)為具體分析對象,分別建立其水冷壁、過熱器、省煤器、空預器的積灰損失和各受熱面吹灰能量損失的模型,建立相應的吹灰器運行規則指導,對設計中的關鍵模型問題,通過模擬計算及與現場數據作比較的方法,驗證其可用程度。
  9. Rebasa from monclova, coahuila, mexico, recently placed an order with maerz for the supply of engineering and key equipment for a 600 tpd natural gas fired kiln type r4s with suspended inner cylinder

    公司,最近向麥爾茲下了訂單,要求麥爾茲供應一座帶有懸掛內缸的
  10. As to the current problems existing in the identification for these flutter derivatives, the dissertation tries to trace the development in the identification for the past unsteady aerodynamic forces of long - span bridges. it also investigates the method for flutter and buffeting analysis and the flutter derivatives. based on the present methods used in obtaining the unsteady aerodynamic forces and flutter derivatives, and co - funded by a natural scientific fund from the nation and a key project fund from the railway ministry, the current research has attempted to develop a device which can be employed in the wind tunnel to test flutter derivative through a forced vibration method

    鑒于目前橋梁斷面顫振導數識別的水平和存在的問題,本文通過對大跨度橋梁非定常氣動力、顫振分析方法及顫振導數識別方法的回顧和評述,基於現有的非定常氣動力和顫振導數的測試方法,在國家自然科學基金與鐵道部重點學科基金的聯合資助下,研究開發了一套在風洞中採用強迫振動法測試顫振導數的裝置。
  11. With the support of intermediate services, the specialized platform of service has been built ; relying on " seed fund ", the platform of fund for adventure some investment has been established ; depending on the special fund of the torch center national ministry of science and technology for state high - tech career service center of ningxia, the honeycomblike informational network of the incubator of technological and small middle sized enterprises, the informational application network of the tracking of the incubating enterprise ' s growth, specialized public developing network ( molecular biology lab, key labs of natural gas transformation ) have been shaped to improve the system of incubation

    依託高校、科研院所的智力資源,建立「智力信息平臺」 ;依託中介服務機構,搭建專業服務平臺;依託「種子資金」為風險投資,搭建資金平臺;藉助國家科技部火炬中心對寧夏國家高新技術創業服務中心專項資金,建立科技型中小企業孵化器蜂窩信息化網路、在孵企業成長跟蹤信息化應用網路、專業型公共開發網路(分子生物學專業實驗室、天然氣轉化重點實驗室) ,完善孵育體系,重點推進幾類孵化器建設。
  12. High - efficiency heat recovery is the key benefit of mechanical ventilation over conventional natural ventilation

    有效地抵禦熱量是機械通風相對于傳統的自然通風最重要的優勢。
  13. Therefore, based on the key project ? esearch on some basic problems on quality control and source tracing in modern manufacture ? ( no. 59735120 ) sponsored by national natural science foundation, a deep research is made in this dissertation its branch subject ? the theory and technology of zero - waste control. the main work and achievements are as follows : 1. on the basis of the introduction of common quality control methods, some key problems about statistical quality control are elaborately discussed ; a method to decide the quality control line is developed ; a mathematical model based on the sampling plan of multi - variation of product quality is set up ; the process manufacturing condition of quality control chart is discriminated using the theory of fuzzy diagnosis

    為此,本文基於國家自然科學基金重點資助項目「現代製造質量控制、溯源若干基礎問題的研究」 (項目編號: 59375254 ) ,重點對其中的子課題? ?零廢品控制理論和技術進行了深入的研究。論文的主要工作和取得的成果如下: 1在介紹了常用質量控制方法的基礎上,對統計質量控制的幾個關鍵問題進行了詳盡的討論,提出了質量控制界限的確定方法,建立了基於產品質量多變異的抽樣方案的數學模型,利用模糊識別理論對質量控制圖工序加工狀況進行了判別。
  14. It was natural site, architectural tradition of hakka culture and microclimate which determined the planning idea of hengkeng, and made hengkeng so different from normal traditional villages in pearl river delta, canton based on the fieldwork, through the analysis of the ancestral halls as the key social space in the village, authors discuss the transformation process of the layout of the village from centralized pattern to comb - shaped pattern, and also make some comparisons between 4 ancestral halls in the village

    通過詳細的實地考察和對家譜、村史的閱讀,以及對作為村落關鍵性社會空間的祠堂的分析,闡述了在嘉靖十九年開放庶民建家廟之後,橫坑舊村從中心式布局轉向變形的梳式布局的過程,並對村落中四座主要的祠堂建築進行了比較研究。
  15. In the part, locke ' s doctrine of natural law, the theory of the four key elements of right and the theory of right principles are analyzed

    其中依次提到了洛克的自然法理論、法權四要素論和法律原則論。
  16. Supported by heilongjiang province natural science foundation projects " research on the errors mechanism of time division a. c. power measurement " ( no. e9719 ), " research on theory of analog digital mixed sampling power energy measurement " ( no. e01 - 15 ) and foundation for university key teacher by the ministry of education " the research on the low audio frequency a. c. power measurement smart instrument " ( no. 1087 ), in this dissertation it is made that a systematic and deep study on power measurement model errors and instrument errors about analog sampling, digital sampling and mixed sampling measurement, and fully experiments about mixed sampling measurement

    本學位論文在黑龍江省自然科學基金資助項目「時分割交流功率測量原理誤差產生機理的理論研究」 (編號: e9719 ) , 「模擬數字混合採樣功率與電能測量的理論研究」 (編號: e01 - 15 )和教育部高等學校骨幹教師資助計劃項目「中頻電功率測量智能儀器的研製」 (編號: 1087 )的資助下,以電功率模擬采樣測量、數字采樣測量和混合採樣測量方法為對象,對電功率測量的原理誤差和儀器誤差進行了系統和深入的理論研究和有關的實驗研究。
  17. The project of the experimental and theoretic research on friction reduction by microbubbles for high - speed ships, supported by the national natural science foundation of china ( no. 19772050 ), aims to study the key technology of air - jetting devices and its relevant problems, theoretically predict the law of bubble diffusing in the boundary layer and calculate the friction of the hull

    國家自然科學基金項目「高速氣泡船減阻試驗及理論研究」的目的在於研究高速氣泡船噴氣裝置的關鍵技術及其相關問題,並從理論上預測噴氣氣泡在船底邊界層的擴散規律和計算船體摩擦阻力,為將這一技術應用到實船上提供基礎。
  18. Japan remains our key ally in the pacific. but more, we believe it is a great power with global interests and a natural partner for the united states around the world

    他說: 「我們有著自從民族國家興起以來的最佳機會… …建立一個強國和平競爭而不是窮兵黷武的世界。 」
  19. Studies on key influencing factors on the dynamics of natural population of rhopalosiphum padi linnaeus

    影響禾穀縊管蚜自然種群變動的關鍵因素研究
  20. It is explored that the effects of the internal natural key element of base enviornmental characteristics and the restrained key element of peripheral environment on the design of buildings, via the creation of comprehensive buildings for graduate students in new campus of henan university

    摘要通過河南大學新校區研究生綜合樓群的建築創作,探討基地環境特徵的內部自然要素和周邊環境限制要素在建築群體設計中的作用。
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