secondary source 中文意思是什麼

secondary source 解釋
次電源
  • 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...
  • source : n 1 源頭,水源,源泉。2 根源,本源;來源。3 原因;出處;原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. The performance of the static inverter has become more and more important since it is a basilic part of secondary power source in airplane which ensures the electron devices to work normally

    作為飛機二次電源重要組成部分之一的靜止變流器,是保證用電設備正常工作的基礎,其性能的重要性也越來越突出。
  2. Being a method of time - domain electrical magnetic surveying, the transient electromagnetic method ( tem ) can transmit first pulse electromagnetic field to underground making use of loop or electrical source and receive secondary induction field during of the pulse intermission

    瞬變電磁法是一種時間域電磁測量方法,是利用不接地回線或接地線源向地下發送一次脈沖磁場,在一次脈沖磁場的間歇期間,採用不接地線圈接收感應二次磁場。
  3. Students from urban areas get much more help from families and old friends than those from rural areas ; cadre students perceive more social support than common students, and the support from the classmate and teachers is more perceivable to them. ( 3 ) the social support is positively related to the adaptation level of the students. students of different supporting sources have different performances in adaptation to college, students of peer - supporting source doing best, students of family - supporting source being secondary, and students of ole friends - supporting source the worst

    來自城市家庭的大學生感受到的家庭支持和以往朋友支持水平,要比來自農村家庭大學生高;學生幹部總體感受到的社會支持水平要明顯高於普通學生,他們更容易感受到大學同學的支持和大學教師的支持,在社會支持的利用度上他們要遠遠高於一般學生;家庭關系密切的學生感受到的各種來源的社會支持水平都要比家庭關系一般的學生感受的支持水平高。
  4. The algorithms estimate the doa of the broadband distributed source fron the secondary diagonal elements of the covariance matrices generated from every frequency domain of the received broadband signals, thus avoiding unwrapping of phases

    該類演算法首先將陣列接收的寬帶信號變換到頻率域,然後對于每個頻率形成陣列接收信號協方差陣,最後由該協方差陣的次對角線元素估計寬帶分佈源的到達角,其主要特點是避免了相位展開。
  5. The gas generation of low mature source rocks has been simulated in the open system and close system respectively. the models of primary cracking gas ( gas from kerogen ) and secondary cracking gas ( gas from oil ) have been established. the ro value of primary cracking gas generation peak is ranged from 1. 0 % to 1. 5 %. the ro value of secondary gas generation peak is ranged from 1. 5 % to 2. 5 %

    對低成熟(部分為成熟)的烴源巖在開放和密閉體系下的生氣熱模擬實驗研究建立了熱解氣和油裂解氣的生氣模式,熱解氣的生氣高峰在ro = 1 . 0 ? 1 . 5 ,油裂解氣生氣高峰是在ro = 1 . 5 ? 2 . 5之間,從熱解氣和油裂解氣的相對含量來看熱解氣占總生氣量的21 ,油裂解氣可能佔79 ,油裂解氣產率為620m ~ 3噸
  6. The air conditioning or heating water systems with primary water system in heat source or cold source side and secondary water system in load side divided by direct connection mode need to adopt connectors or water mixers

    摘要用直接連接方式劃分熱源(或冷源)側一次水和負荷側二次水的供暖或空調水系統,需要採用連通器或混水器。
  7. Meanwhile, owing to the sluggish economy, the defective stock market system, the enormous expense of the listing procedure and the firm regulation of company information revelation, it is not practical for the secondary market, with limited market capacity, to act as the main source for the withdrawal of venture capital. therefore, the otc market gets essentially necessary

    同時由於宏觀形勢、市場本身欠缺、制度障礙等因素的影響,再加上二板市場的容量有限,企業上市所需可觀費用的支出,大量信息披露的要求,致使建立二板市場作為風險投資退出的主渠道在短期內並不具有現實意義,因此建立otc市場就顯得十分迫切和必要。
  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. The main principle problems in the study area include, the diagenetic history, the type of sandstone, the source of the sandstone type, the source of cement, the source rocks for generation petroleum, the formation of secondary porosity, the oil migration, and reservoir quality

    論文在成油體系分析的基本思路指導下,探討東營凹陷南部斜坡帶孔店組儲集砂巖的礦物組成、物源方向、膠結作用、成巖作用動力學過程,以及次生孔隙發育與油氣生成聚集的關系。
  10. Instruction means that the processor walks through the secondary source and applies templates as it goes along

    指令意味著處理器遍歷輔助源文檔,並在遍歷過程中應用這些模板。
  11. Abstract : the authors discuss roundly source of loose earth fo r impact - deposit debris flow to develop taking pingchuan debris flow, one of the quite typical impact - deposit debris flows in southwest sichuan province , as an example in this paper. on the basis of detailed investigations in - situ, geotechn ial testing in lab and theory analysis, all results indicate obviously that moder ate and bulky loose earth in giant debris flow situating in southwest sichuan mo untainous area are main institute, whose tribulation are consistent with landform s. loose earth locating in mid - forepart catchment are quite unstable, so often be comes main source of loose earth of debris flow. formation of loose earth is cont rolled principally by geologic and geotechnical environment while human actions is the secondary factor for loose earth to form. in many times, human actions prov ide loose earth through loose earth stability

    文摘:本文以極具典型的平川泥石流為例比較全面的分析了沖淤變動型泥石流的物源問題.根據現場調研及室內巖土分析進行的研究成果顯示,川西南高山深谷地區的大型泥石流溝中的鬆散土體以中、粗粒段為主,其分佈與地形密切相關;位於泥石流溝中、前部位的鬆散土體的穩定性最差,是補給泥石流的重要物源;鬆散土體的發育主要受控于地質及巖土環境,人類活動只能影響鬆散土體的穩定性
  12. Analysis of petroleum geology, reservoir types and distribution in lujiapu depression indicates that : the forming and distribution of reservoirs had been controlled by source area, source - reservoir relationship, petrophysical characteristics, sedimentary facies and secondary structure, and oil is most abundant in reservoirs around hydrocarbon kitchen ; the upper member of jiufutang formation which was entrained or embedded in the main oil source layer has well developed reservoir and good petrophysical property and is the principle oil - bearing interval ; the mid - fan and fan delta front of nearshore submarine fan is the most favorite facies ; the steep slope of the depression mainly consists of structural reservoirs, the slope belt mainly consists of structural - lithologic and updip pinchout reservoirs, the depressed belt mainly consists of lenticular lithologic reservoirs

    摘要對陸家堡凹陷油藏形成的石油地質條件、已知油藏類型及分佈的分析認為:生油區、生儲配置關系、儲集物性、沉積相帶和二級構造帶控制了油藏的形成和展布,其中圍繞生油窪陷的油藏含油最豐富;夾持或嵌入主要生油層中,儲層發育、儲集物性又相對較好的九佛堂組上段是主要含油層段;近岸水下扇的扇中和扇三角洲前緣是最有利的相帶:凹陷的陡坡帶以構造油藏為主,斜坡帶以構造巖性及儲層上傾尖滅油藏為主,深陷帶主要為透鏡狀巖性油藏。
  13. By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source

    通過模擬結果與軟開關點焊逆變器試驗結果的對比分析,得到了如下主要結論:採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍,減小了次級占空比丟失,降低了逆變電阻點焊電源的開關損耗;諧振電容是影響軟開關工作狀態的重要因素,其大小不僅影響開關管的零電壓關斷,同時也影響開關管的零電壓開通范圍,因此,諧振電容應該綜合考慮;功率變壓器漏感越大,越容易滿足滯后橋臂的軟開關條件,但是大的漏感也使變壓器的通態損耗增加,降低了軟開關逆變器的效率。
  14. In himalaya period, the basin was compressed. as tertiary deposits increased, jurassic source rocks started secondary hydrocarbon generation, thus resulting in the activation and reconstruction of the petroleum system

    燕山運動中晚期,侏羅系大規模沖隆及剝蝕,侏羅系源巖生烴作用終止,含油氣系統被破壞。
  15. For example, gansu financial professional school, while senior middle school continue to large. students source, technical secondary students in both quality and quantity cut down seriously, at the same time

    以甘肅省財政學校為例,隨著高校擴招而導致的高中擴招的沖擊,中專生生源的數量、質量連年降低,學生厭學現象有增無減。
  16. Gets the entire stylesheet as a secondary source document

    將整個樣式表作為一個輔助源文檔。
  17. Secondary source data

    第二手資料
  18. The deduced amino acid sequence revealed that the isolates from guangdong province possibly were the primary source of afvs of mainland china. the central china area, such as henan province, may be a secondary source to the north and west of china. atvs changed by and by in the south district of mainland china, just like nan jing and shanghai

    本實驗將在中國大陸1994年至2001年期間,不同地區、不同年代和不同宿主中分離到的h9n2亞型禽流感病毒株,應用逆轉錄聚合酶鏈反應rt - pcr擴增出該亞型病毒的血凝素基因ha ,經測序,獲得的30株中國大陸h9n2亞型禽流感病毒分離株的核苷酸序列。
  19. Citing a secondary source, likewise a responsibility also makes the source known to other readers, and either allows one to levy on its authority without reproducing all its evidence, or suggests the importance of one ' s own paper as a critique of an authoritative statement

    引用二手資料,也是一種責任,它同樣可以使讀者了解資料出處;它或者使作者不必重復所有的證據就具備權威性,或者暗示作者的論文因對某一權威觀點進行批評而具重要性。
  20. And the acoustical feedback of the secondary source is one of the key problems that affect noise reduction in ducts

    而次源聲反饋問題一直是影響管道有源消聲系統的關鍵問題之一。
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