secondary key 中文意思是什麼

secondary key 解釋
次碼鑰
  • secondary : adj 1 第二（位）的，第二次的；中級的 （opp primary）。2 副（的）；從屬的；附屬的；輔助的；補充的...
  • 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. This paper describes the structure, technical features and technical requirements of manufacture of a gasification stove with four contraposition burners on side walls, expatiates on its manufacturing process, key techniques and quality guarantee measures such as barrel formation, machining, assembly welding, heat treatment, subassembly secondary machining and precision detection

    摘要氣化爐是煤化工的核心設備，大慶油田金屬結構廠與哈爾濱鍋爐廠合作，為某大型石化企業製造了一臺側壁4個燒嘴對置式新型氣化爐，該氣化爐是目前國內同類產品中最大的氣化爐。
  2. At the late diagenesis phase, the dissolution of frame grains, especially the dissolution of felspar and laumontite, is the key to form secondary porosity

    朵狀砂體的大小直接控制油藏的范圍及規模，靖安地區的主要油藏多沿不同的朵狀體成排分佈。
  3. Recent progress in the key materials for li s polymer secondary batteries

    鋰硫聚合物二次電池關鍵材料研究進展
  4. The technology of identification based on iris is researched in the article, the key point of the technology is the iris characteristic acquisition and recognition, therefore based on the iris image texture characteristic, using the wavelet transforms to get the characteristic of iris image, a new method named zero - crossing detection and secondary circle coding is used in the article

    本文研究的就是用虹膜進行身份識別的技術，該技術的關鍵是虹膜特徵提取和識別。基於虹膜圖像的紋理特徵，利用小波變換來提取虹膜圖像的特徵，本文提出了基於小波過零檢測的循環二次編碼的方法。
  5. All indexing options that apply to a nonclustered index, except ignore dup key and online, are permitted on secondary xml indexes

    除了ignore _ dup _ key和online之外，允許對輔助xml索引使用所有適用於非聚集索引的索引選項。
  6. Artemisinin, a sesquiterpene lactone containing an endoperoxide bridge, is a kind of phytoalexin. sa, a key signal molecular during systemic acquaired resistance ( sar ), is related to the biosynthesis of phytoalexin. aba, a stress - resistance plant hormone can influence the secondary metabolism to stimulate phytoalexin biosynthesis

    青蒿素屬于萜烯類化合物（倍半萜類）是植保素（ phytoalexin ）的一種， sa是植物產生系統獲得性抗性的重要信號分子，與植保素的產生相關。
  7. Based on investigation, psychological tests, documents, cause investigation and analysis, and mathematical statistics, this thesis made a systematic study on the contemporary characteristics of early 21st century excellent physical education teachers in chinese secondary school, and on the talent - making factors, with 153 secondary schools from the " cross - century gardening engineering " training class composed of the key primary and secondary physical educational teachers of national level as the objects of study

    採用調查法、心理測試法、文獻法、個案分析法以及數理統計法，以「跨世紀? ?園丁工程」國家級中小學體育骨幹教師培訓班中的153名中學教師為研究對象，對21世紀初我國優秀中學體育教師的時代特徵與成才因素進行了較系統的研究。
  8. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  9. According to the analysis of the difficulty and problems that the primary and secondary schools come across in the process of the it - based education, this article discusses the design principle, frame, function and operation of the it - based education platform which provides support for teachers " preparation for lessons, interactive teaching and learning, students " self study and training and feedback. basing on the campus internet, it is centered by teaching resources storehouse and around the key points of the primary and secondary schools " teaching process

    本文通過對中小學校在實現信息化教育過程中遇到的困難與問題的分析，討論了基於校園網路，以教學資源庫為核心，緊緊圍繞中小學教學過程的關鍵環節，對教師備課、互動教學、學生自主學習、學生自主訓練以及教學反饋等方面提供支持的信息化教育平臺的設計原則、框架、功能、使用方法以及技術實現方法等方面問題。
  10. In the path secondary index, the path and node values are key columns that allow for more efficient seeks when searching for paths

    在path輔助索引中，路徑值和節點值是允許在搜索路徑時使用更高效的查找功能的鍵列。
  11. Relationship among the self - concepts of different subjects. chinese, math, and english are the key courses in secondary schools. negative correlations were found between math self - concept and chinese self - concept, between math self - concept and english self - concept while chinese self - concept and english self - concept is positively related

    二、各學科自我概念關系的差異分析把語文、數學和英語三門課程作為中學的核心課程，採用與之對應的三個學科自我概念和學校自我概念，進行學業自我概念的分析。
  12. The school separately with the country key secondary technical or specialized school " jiangsu automobile technician institute " and " shandong coal health school " the union school, simultaneously is authorized the establishment " jiangsu automobile technician institute sheyang branch " and " shandong coal health school sheyang branch school "

    學校分別和國家重點中等專業學校「江蘇汽車技師學院」和「山東煤炭衛生學校」聯合辦學，同時被授權成立「江蘇汽車技師學院射陽分院」和「山東煤炭衛生學校射陽分校」 。
  13. After stiff competition from the competing finalists, shau kei wan government secondary school took first place. the winning team had to complete two tasks in 25 minutes. the students first had to place a carton into another carton that was held under the water, and then use a robotic arm to release the key to an underwater buoy, making it a float to the surface

    各參賽隊伍須于限時25分鐘內將機器人由岸上遙控至水底，並完成兩項任務測試： 1將放在泳池邊的膠箱搬往水底，並將之放進水底的另一個膠箱內2利用機器人手臂拉開預先放在水底之裝置上的鑰匙，使其浮件浮到水面。
  14. The significant capacity loss of the spinel limn2o4 during cycling hereby prevents its wider use as cathode materials for lithium secondary batteries. there are two main factors resulting in fading capacity and poor cyclability, one is the jahn - teller distortion of mn3 +, and the other is mn dissolution to electrolyte. the main objects of this paper are to resolved these key problems effecting on the performance of batteries

    針對limn _ 2o _ 4正極材料在電化學循環過程中發生jahn - teller畸變和mn在電解液中溶解這兩個導致容量衰減和循環性能劣化的關鍵問題，分別採用陰陽離子復合摻雜和尖晶石晶粒表面包裹兩種措施，對尖晶石結構limn _ 2o _ 4正極材料進行了改性研究。
  15. Secondary surveillance radar ( ssr ) is a key equipment in air traffic control ( atc ) and military identification friend or foe ( iff ), ssr is a hot issue in radar signal processing

    二次雷達ssr （ secondarysurveillanceradar ）是民航空中管制（ airtrafficcontrol ）和軍事敵我識別（ identificationfriendorfoe ）系統中的關鍵部分，是國內外雷達信號處理領域的研究熱點。
  16. Find curriculum guides for secondary 1 to 7 subjects under the eight key learning areas and useful reference materials for teachers and parents

    此網頁詳盡介紹中學課程內隸屬八個學習領域的科目、中一至中七各科的課程指引，以及為教師及家長提供的參考資料。
  17. Find curriculum guides for basic education primary 1 to secondary 3, the eight key learning areas and general studies for primary schools

    你可透過此網頁瀏覽基礎教育課程指引（小一至中三） 、八個學習領域的課程指引及小學常識科課程指引，以及為教師及家長提供的參考資料。
  18. Key construction project and likelihood happen serious and secondary the construction project of calamity, must undertake seismic security is evaluated ; the result that evaluates according to seismic security, decide aseismatic fortify asks, undertake aseismatic fortify

    重點建設工程和可能發生嚴重次生災難的建設工程，必須進行地震安全性評價；並根據地震安全性評價的結果，確定抗震設防要求，進行抗震設防。
  19. The present studies have proved that the most important factor which influences the performances of lithium metal anode in battery is the solid electrolyte interphase interface - film ( sei film ) on lithium anode. and how to make lithium metal anode have a sei film with favorable composition and stable configuration, or make the sei film have better stability, is the key to improve the electrochemistry performances of lithium metal anode in lithium secondary battery

    已有的研究證明:影響金屬鋰負極在電池中性能的主要因素是其表面的固體電解質中間相界面膜（ sei膜）的性能;如何使鋰金屬電極表面具有組成良好、結構穩定的sei膜，或者使鋰電極表面sei膜能夠更好的「穩定化」 ，是提高鋰二次電池中鋰金屬負極電化學性能的關鍵。
  20. To round things out, you can also define one - to - one relations, where one primary key must match exactly one secondary key

    為了更加全面，您也可以定義一個主鍵必須恰好與一個輔鍵匹配的
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