primary source 中文意思是什麼

primary source 解釋
一次光源
  • primary : adj 1 第一的,最初的,初級的;初等的;基本的;基層的。2 主要的,為首的,第一位的。3 原始的,根本...
  • 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. At the first start up of a new reactor, primary source rods consisted of californium - 252 are inserted into the reactor to produce sufficient neutrons to initiate the first fission

    反應堆在首次啟動時,會放入含有- 252 cf - 252的一次中子源棒,以提供足夠數量的中子進行初次核裂變。
  2. The winding through which a current is passed to produce the primary source of flux in the machine is called the field winding

    電流通過其在電機中產生主磁通的繞組稱為勵磁繞組。
  3. Glucose, which forms when the body digests carbohydrates, is the primary source of energy in the body ? that is, it is the main material used by cells for making atp, or adenosine triphosphate, the molecule that directly powers most cellular activities

    人體消化碳水化合物后形成的葡萄糖,是身體最主要的能量來源也就是說,它是細胞用來製造atp (三磷酸腺苷,大多數細胞活動的直接能源)的最主要物質。
  4. 4. for the rana quadranus, the follicle cells are the main sites for estradiol ( e2 ) and progesterone ( p ), whereas the thecal cells are the primary source for testosterone ( t ). they cooperate with each other and accomplish the secretion

    隆肛蛙卵巢濾泡細胞是合成與分泌雌二醇和孕酮的場所,膜細胞是合成與分泌睪酮的場所,兩種類型細胞相互協作,共同完成其分泌活動。
  5. Help you find some primary source historical maps that may not have been available to you through other means

    幫你找到一些通過別的方式無法找到的第一手歷史地圖資料。
  6. Exposure to sunlight is a primary source for many, but for those with limited exposure to sunlight ; fish oils, egg yolk and some fortified dairy products are important in ensuring the bodys stores are adequate

    對于許多人來說曬太陽是維生素d的主要來源,但對于那些較少曬太陽的人來說,魚油蛋黃和一些維生素d強化的乳製品是很重要的,它們能夠確保機體維生素d儲備的充足。
  7. The fishing industry was a primary source of colonists' wealth.

    捕魚業是殖民者財富的主要來源。
  8. The center is home since sales enterprises, the primary source for products, price competitive, striving to create the largest profit space for their clients

    本中心是自產自銷型企業,產品為一手貨源,價格極具競爭力,力求為客戶創造最大的利潤空間。
  9. The importance of these personalised interviews lies in its emotional content, which in turn enriches the primary source for further researches. the oral history project has been met with enormous support, with interviewees spanning from some of the best veterans of hong kong cinema such as director kwan man - ching and actress li lihua, to those artists now residing in the us

    本館的口述歷史計劃得到無數影人的合作,至今已訪問了百五人,其中包括多位前輩導演及演員,例如導演關文清影后李麗華甚至有越洋訪問得回來的,如今已移居美國的影人。
  10. Primary source materials and video resources are much more available than for the 40s covered by the last volume. hence, the number of words and stills has also increased, constituting harder editing and translation work

    由於影片數量激增,編譯更費力,而且原始文獻及影像資料遠較四十年代豐富,全卷書的字數及圖片都相應增多。
  11. These areas of the law are mostly within the jurisdiction of the states, and thus state courts are the primary source of common law

    這些法律領域主要由州管轄,因此州法院是習慣法的基本淵源。
  12. Carbon dioxide emissions are the primary source of greenhouse gases

    二氧化碳的釋放是溫室效應氣體的主要來源。
  13. Cancer registries are a primary source for unbiased population - based case control studies, the end points for cohort studies and clinical trials - - and perhaps most importantly, the beginning point for survival analysis

    癌癥登記處是一個無偏倚基於人群病例對照研究的原點,群組研究和臨床試驗的終點也可能是最重要的生存分析的起點。
  14. The primary source of excess atmospheric carbon dioxide is fuel burned for transportation and the making of electricity. cutting down the world s forests adds to the problem, as the harvested trees can no longer take carbon dioxide from the air. bbc s world edition also discussed the rising acidity of the world s oceans

    由於交通運輸和發電而燃燒煤礦和石油所產生的廢氣,是造成大氣中二氧化碳過多的最主要因素,而濫砍森林亦使得問題更趨嚴重,因為這些被砍伐的樹木再也無法吸收消化空氣中的二氧化碳。
  15. The current absence of parity is the primary source of the friction in the u. s. - china trading relationship

    目前缺少對等是美中貿易關系發生磨擦的主要根源。
  16. Through the analysis of geological characters in huanglianken manganese ore district, such as ore potentiality, ore controlling structures, ore depositing structures, orebody characteristics, ore type and so on, the author concluded that sinian stratum is the " primary source bed ", detachment structure is the migrating channel of ore - forming materials, favorable concentration and hosting place

    通過對黃連坑錳礦區地層的含礦性、控礦構造及容礦構造、礦體特徵、礦石類型等地質特徵的論述,認為震旦系地層是「初始礦源層」 ,滑脫構造對成礦物質起遷移、富集及容礦作用。
  17. As a result 4 the rising annealing temperature induces si02 phase to form, also ivolves the formation of a si phase. in high - temperature - annealed sio ~, films the excess silicon atoms are present as si - si4 tetrahedra, randomly dispersed in the amorphous si02 matrix. photoluminescent spectra were observed for the samples excided by the laser whose wavelength is 365nm. the pl peak is located at about 445nm, which dose n ' t shift as the annealing temperature changes. as the annealing temperature is raised, the luminescent intensity increases. the phenomena suggest that the si - o - si bond as a defect center which is broken down by the stress at the si nc / si02 interface is the primary source of blue luminescence

    這個陡的界面由於明顯的晶格結構的差別而有較大的應力。界面的形成伴隨著界面發光中心的增加,同時pl強度在l戶800有一個大的增強。這個結果提示我們,界面上h 0 s工鍵斷裂形成的nbohc應是藍光發射的主要原因。
  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. After the southern counties of ireland seceded from the united kingdom in the 1920s and formed an independent republic, the issue of whether to join the republic of ireland or remain part of the uk became the primary source of political division within northern ireland

    1920年代南愛爾蘭脫離英國,成立獨立共和國后,添加愛爾蘭抑或留在英國,就成了北愛爾蘭境內最主要的政治分歧源。
  20. A simple stock adjustment identity implies that the time series of fixed investment exhibit strong reversion over time, and that the reversion is the primary source of the volatility fixed investment series

    這里還特別界定了折舊、資本存量的概念,介紹了資本存量調整的理論,存量調整理論為固定資產投資的回復特性提供了理論依據。
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