重原子法 的英文怎麼說

中文拼音 [zhòngyuánzi]
重原子法 英文
heavy atom method
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
  • : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  1. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種金屬作為實驗毒物,以鯽魚為實驗動物,應用環境生物技術、火焰吸收分光光度、鄰苯三酚自氧化、透射電鏡等技術研究了金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等,全面和系統地研究了水環境中金屬暴露對魚類的毒性影響,初步探討了金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分等各水平層次的影響,為制定漁業生產上預防性的管理措施提供科學依據,及時避免或減輕金屬污染對水生生態系統造成的損害。
  2. But neither can two great and powerful groups of nation take comfort from our present course, both sides over - burdened by the cost of modern weapons, both rightly alarmed by the steady spread of the deadly atom, and yet both racing to alter that uncertain balance of terror that stays the hand of mankind ' s final war

    但是,這兩個強大的國家集團都無從目前所走的道路中得到安慰- - -發展現代武器所需的費用使雙方負擔過,致命的武器的不斷擴散理所當然使雙方憂心忡忡,但是,雙方卻爭著改變那制止人類發動最後戰爭的不穩定的恐怖均勢。
  3. The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury

    研究內容主要有:廣州市河涌沉積物及底棲生物體內金屬含量及評價;汞和硒對劍尾魚的急性毒性和聯合毒性及安全濃度的評價;汞對劍尾魚鰓和肝臟中抗氧化系統的毒性,包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用;汞對劍尾魚組織生理毒性即:汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍尾魚組織超微結構的損傷等。以高氯酸?硝酸消化和火焰吸收分光光度測定了廣州市河涌沉積物和底棲生物中金屬含量。
  4. After entry of wto, there are still many maladjustments in guangxi ' s seed industry, such as the weak foundation of sees industry development ; the unformed market of the seed industry for fair competition ; small - scale seed enterprises ; no systematic connection among the cultivation, breeding and marketing ; lower qualification of staff who work in the seed industry and with weak sense of laws, and lack of the knowledge in operating experiences in the international market and trade etc. yet the un - efficiency system, unclear property right in enterprises, the lack of an effective mechanism to promote the rational use of resources in the seed industry and the lack of such concept as " the government creates environment and enterprises create fortune " are the deep - seated causes of the problems in guangxi ' s seed industry. therefore, the key points for promoting development of guangxi ' s seed industry under the wto framework are to focus on the promotion of the developing capability of seeds " integrated products, constantly deepen reforms, to adjust various relevant factors in the system of the seed industry which is inconsistent with each other, and to establish a new - pattern system with evident characteristics of the time spirit in order to meet the requirements of the market economy. hereinto, the specific strategies and measures for promotion of guangxi ' s seed industry development under the wto framework include kee ping up reform and innovation of the system of the seed industry, executing of non - nationalization reform in state - owned seed enterprises, formulating and executing relevant supporting policies, the improving the legal system in the seed industry, increasing public financial support on the seed industry, promoting the integration of cultivation, breeding and marketing, strengthening human resource development, developing the main body of the seed industry ' s market and making proper conditions for the functions of seed associations in the seed industry development etc

    研究結果認為:發展種產業應該把著眼點放在促進種整體產品的開發上;種產業的發展依賴于能充分發揮整體功能的新型種業體系的構建,而目前廣西種業體系中的品種選育、種生產加工、種經營以及政府管理、公共支持和社會服務六個主要組成部分都存在明顯的缺陷與不足;廣西種企業綜合競爭力總體處于較弱水平;面對wto ,廣西種產業仍有諸多的不適應,突出表現在產業發展基礎薄弱、尚未形成可以公平競爭的種業市場、種企業規模小、育繁銷脫節、種業人才素質不高、種企業律意識淡薄、國際市場運作經驗和國際貿易知識不足等多個方面,而體制不順、企業產權不明晰、缺乏促進種業資源合理流動的有效機制以及「政府創造環境,企業創造財富」的正確理念正是導致目前廣西種產業不能適應入世需要的深層次因;因此,以提升種整體產品開發能力為核心,不斷深化改革,調整種業體系中不相協調的各有關因素,構建起符合市場經濟體制要求的具有鮮明時代特徵的新型種業體系,是wto框架下加快廣西種產業發展必須堅持的指導思想;其中,加快種業體制改革和創新、實施對國有種企業的非國有化改造、制訂落實有關扶持政策、完善種規體系、加大公共財政對種產業的支持力度、推進育繁銷一體化的形成、加強人才培養與引進、壯大種業市場主體、實行點突破戰略、發揮種行業協會作用等等,都是wto框架下加快廣西種產業發展應該採取的具體對策措施。
  5. Professor che pioneered the chemistry of reactive ruthenium - ligand multiple bonded complexes, which he subsequently used to elucidate the mechanisms of atom and group transfer reactions with organic substrates. he discovered a series of biomimetic chemical reactions applicable to the synthesis of pharmaceuticals and fine chemicals. he also pioneered the photochemistry of phosphorescent metal complexes and synthesized, by photochemical means, novel types of reactive molecules that exhibit unique properties and reactivities unreachable by ground state molecules

    支教授創立活性釕多鍵配合物化學並用於揭示和基團向有機底物轉移的反應機理開拓一系列可應用於藥物合成和精細化學品合成的仿生物化學反應創立磷光金屬配合物光化學,並利用光化學方合成具有基態分所無達到的特殊性質和反應性的新穎物種。
  6. Exploration of determination of partial heavy - metals in soil with dry ashing method - atomic absorption spectrophotometry

    吸收光譜測定土壤中部分金屬的探討
  7. Abstract : based on the principle of non - weighting determination of c 、 h 、 n atomic ratio , a micro - injection sample introducing method was developed for determination of h / c ratio for volatile reagent

    文摘:根據不稱測定化合物碳、氫、氮比的理論,建立了微量注射測定強揮發性液體樣品的氫/碳比的方
  8. Lastly, we discuss the energy - band structure of ultracold atoms in optical lattice by means of green function method and in addition, procure the superfluid - mott phase transition condition in mean - field approximation which is in agreement with the result in the literature

    最後利用格林函數方討論了光格中超冷的能帶結構,根據mott相存在能隙的判據我們在平均場近似下新得到superfluid - mott相變條件,該結論與相關文獻一致。
  9. The type of intensity alternation ( whether the even or the odd lines are strong ) is determined by another important nuclear property

    強度更迭的類型(偶數譜線強還是奇數譜線強) ,取決于另一個要的核性質核統計
  10. Heavier atoms, such as those of plutonium, also important for the release of atomic energy, have been made artificially from uranium.

    如鈦(它對能釋放也起著很要的作用),是用人工方從鈾中製造出來的。
  11. En iso 11212 - 3 starch and derived products. heavy metals content. part 3 : determination of lead content by atomic absorption spectrometry with electrothermal atomization

    澱粉及其製品.金屬含量.第3部分:由電熱粉碎吸收光譜測定鉛含量
  12. En iso 11212 - 4 starch and derived products. heavy metals content. part 4 : determination of cadmium content by atomic absorption spectrometry with electrothermal atomization

    澱粉及其製品.金屬含量.第4部分:由電熱粉碎吸收光譜測定鎘含量
  13. The flesh of this biota was tested for their cadmium, lead, chromium, nickel, copper, and zinc concentrations ( based on wet weight ) using the method of hnq3 - hc104 digestion and flame atomic absorption spectrophotometry

    以高氯酸?硝酸消化和火焰吸收分光光度計測定了廣州石牌市場食用魚類和雙殼貝類的cd 、 pb 、 cr 、 ni 、 cu和zn等金屬的含量。
  14. Furthermore, the growth and the study of self - organized quantum dots structures become more and more important recently, and the application of self - organization technique become wider and wider in this thesis, we address the theory of film growth and the growth technique firstly more, the ways and characteristics of surface detection are prescribed we mainly report the growth process, results and discuss of self - organized quantum dots structures in the a12o3 substrates by s - k mode using ecr - mocvd, in the espd - u device the growth art of ain epilayer which is the preliminary foundation of self - organized gan / ain quantum dots structures, including the substrate cleaning, nitridation, the growth of buffer and the growth of gan and ain epilayer, is discussed we deliberately compare the test result of rheed xrd and afm and achieved the optimalized condition of ain at last we have successfully realized the growth of ain which is much smooth and better crystal quality moreover, we grow the self - organized gan / ain quantum dots structure in s - k mode because the limits of the heater temperature, we can not grow the atom - smooth epilayer of ain until now so we could not grow better quantum dots which have small diameter and big density but the self - organized quantum dots structures with better quality will be realized successfully if the substrate temperature is increased the thesis study belong to my tutor subject of national nature science foundation ( 69976008 )

    本論文主要論述了在espd - u裝置上,採用電迴旋共振等離體增強mocvd ( ecr - pamocvd )方,在藍寶石襯底上通過s - k模式自組裝生長gan aln量點結構的生長工藝、結果及討論。而點分析了自組裝生長量點之前的aln外延層生長工藝,包括襯底清洗、氮化、緩沖層的生長和gan 、 aln外延層的生長;通過高能電衍射、 x射線衍射和力顯微鏡測試,並且對這些測試結果進行了詳細的比較研究,得出了較優化的工藝條件,生長出了晶質較好、表面較平整的aln外延層;進而採用s - k模式自組裝生長了gan aln量點結構。由於實驗裝置加熱爐溫度的限制,我們沒有能夠生長出級平滑的aln外延層表面,因而沒能夠生長出密度比較大和直徑比較小的量點。
  15. By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier

    實驗結果表明:隨著工作氣壓的減小,薄膜的晶粒尺寸有所減小;通過提高氫氣稀釋度,利用氫在成膜過程中起的刻蝕作用,可以穩定結晶相併去除雜相;選擇適當的熱絲距離能保證反應氣體充分分解,又使襯底具有較高的過冷度,是形成納米薄膜的要條件;採用分步碳化可以提高形核密度,有利於獲得高質量的納米- sic薄膜;襯底施加負偏壓可以明顯提高襯底表面的基團的活性,因負偏壓產生的離轟擊還能造成高的表面缺陷密度,形成更多的形核位置。
  16. Mainly for to determine the threshold of the atomic emission spectrometer oil analysis, the method is researched and has been used in practice

    發射光譜儀油液分析的界限值制定提出具體方,並已在實際中應用。
  17. In this method, to balance inner and external rotors at the same ii time, the machine only need be started three times ( one for measure the rotors " original vibration, the other for measure the rotors " vibration after inner and external rotor with left - trial - weight simultaneously, another for measure the rotors " vibration after inner and external rotor with right - trial - weight. ). however, if balance rotor individually, we should start the machine six times

    內、外轉同時配平衡只需要開機3次(第一次測量始振動:第二次對內、外轉同時加左試並測振動;第三次對內、外轉同時加右試並測試)即可同時完成內、外轉的平衡,而內、外轉單獨平衡需開機6次。
  18. Based on the basic principle of wavelet analysis, multi - resolution analysis of signal in atomic clock is made. the coefficients of wavelet transform for synthesis atomic time, which are weighed and averaged at different wavelet scales, are obtained. then according to reconstruction theorem, multi - resolution synthesis time scale can be reconstructed. since the signal of atomic clock has been analysed by multi - resolution, we can use wavelet variance at different scales to weight and average the coefficients. thus either the difference in stability of different clock or the varying characteristic of the same clock at the different scale are all considered. finaly, this method is checked by the measured data from national timing serve center of shaanxi astronomy observatory. it confirmed that this technique, which is simple and practicable, is a new method of multi - resolution. from this method, the common characteristic of different clocks can be extracted. the stability of multi - resolution synthesis atomic time scale is obviously superior to that of other methods

    本文根據小波分析的基本理,對鐘信號進行多解析度分解,將分解后的小波變換系數進行加權平均,得到不同小波尺度綜合時的加權平均小波變換系數,然後由小波變換的構條件,反演綜合時間尺度.由於對鐘信號進行了小波分解,利用不同尺度的小波變換系數的小波方差進行加權平均,這樣既考慮不同鐘在穩定性方面的差異,又顧及同一臺鐘在不同小波尺度的變化特性.最後根據陜西天文臺國家授時中心的實測數據對這種方進行了檢驗.表明這是一種全新的多解析度綜合方,這種方比較簡單而切實可行,它能提取各個鐘的共同特性,多解析度綜合時間尺度的平穩性明顯優于其他方
  19. Thus the b ( e2 ) value of the first excitation state of 64cu has been directly measured for the first time with this method using 64cu rnb in this work

    因此利用能院101 『水反應堆,首次用低能庫侖激發實驗方對『 tll第一激發態b田)值進行直接測量。
  20. The cultivated anisodus tanguticus ( maxim. ) pascher of two year and three year in different growth phase was collected, and the content of heavy metal element as pb, as, hg, cd was analysed by hydrogen generation - atomic absorption spectrometry

    採集兩年生和三年生種植山莨菪在不同生長期的植物全植株,採用流動注射氫化吸收光譜分別測試了其不同組織中鉛、砷、汞、福等金屬元素含量。
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