需氧條件 的英文怎麼說

中文拼音 [xūyǎngtiáojiàn]
需氧條件 英文
aerobic condition
  • 需 : Ⅰ動詞（需要） need; want; require Ⅱ名詞1. （需用的東西） necessaries; needs 2. （姓氏） a surname
  • 氧 : 名詞[化學] （氣體元素） oxygen （o）
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 條件 : 1. （客觀的因素） condition; term; factor 2. （提出的要求） requirement; prerequisite; qualification
  1. The experimental results showed that in the condition of this experiment four algaecides all had strong removing rate on algae, and their removing rate increased with dose increasing, and decreased with algae density increasing. according to the removing rate on algae and cost value or so, the sequence of four algaecides from good to bad were potassium permanganate, copper sulfate, hydrogen peroxide and sodium hypochlorite. in the condition of this experiment, the suitable dose of potassium permanganate was 0. 8mg / l, the algal removing rate was beyond 90 % and the cost of this algaecide was only 0. 0068 / m3. the efficiency of algae removal by four algaecides for huanghe river water was studied. the results showed that the majority of huanghe river water was bacillaroiphyta, and the dominant genera was melosira, which reached 78 % ~ 94 %

    結果表明，在實驗條件下，四種殺藻劑均具有一定的殺藻效果，藻類去除率均隨藥劑投量的增加而提高；原水藻類數量影響殺藻劑殺藻效果，四種殺藻劑的藻類去除率均隨原水藻類數量的增加而降低；通過殺藻效果、經濟性以及安全性等方面的綜合比較，對于以有毒藍藻為優勢藻屬的引灤水，四種殺藻劑的優劣程度從優到劣排序為：高錳酸鉀硫酸銅過氧化氫次氯酸鈉；在實驗條件下，高錳酸鉀適宜投加量為0 . 8mg l ，藻類去除率高於90 ，所需的藥劑費用僅為0 . 0068元m ~ 3 。
  2. The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm

    試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。
  3. A stable radical intermediate is a necessary requisite to loss of carbon dioxide.

    一個穩定自由基的中間體是脫除二氧化碳所需的必要條件。
  4. The use of sulfates and carbon dioxide requires strictly anaerobic conditions.

    使用硫酸鹽和二氧化碳時，需要嚴格的厭氧條件。
  5. Aim of this study was to meet the need for development of tribological parts in pumps. at room temperature tribological properties of different sliding pairs of silicon carbide and alumina - based ceramics were tested using a laboratory tribometer in the ring - on - plate geometry under reciprocating sliding linear contact in different media, such as distilled water, aggressive media and air

    本文針對目前泵用摩擦零部件材料發展的需要，在實驗室摩擦磨損試驗機上研究了按環/塊線接觸方式作往復運動條件下的碳化硅和氧化鋁基陶瓷材料摩擦副在水、化學腐蝕性介質作潤滑劑和無潤滑時室溫下的摩擦磨損特性。
  6. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  7. The future characterization and genetic analysis for candidate mutant were carried out and find that some candidate mutant ( such as roi30 doil - 1 doi0311131 ) have good phenotype by drought h2o2 aba - stressed treatment. at the same time we also observe the development of candidate mutant at different growth stages carefully. many modal difference between mutant an d wild type at the same period were found, such as more rosette layering fatty and big in leaves, advancment or delay for the flower period, rosettes living in the main stem, shorten in figure, the amount of seed little, sterilization etc. these physiological and modal changes may reflect with maladjustment in expressions of some gene and confusion on their inner control, . we will futher study concrete and detailed function mechanism

    我們對這些擬南芥侯選突變體進行進一步的鑒定和遺傳學分析，發現ro口口、 doil 、 doi口jlll3i等潛在突變株對aba 、過氧化氫及早脅迫有明顯表型，同時對潛在突變體的生長發育進行了詳細的觀察，發現多數潛在突變株與同條件下野生型比出現了許多明顯的形態改變，如:蓮座基葉增多、分層、肥大，花期提前或延遲，主莖生輪座，株型矮化，產籽量少，不育，敗育等，這些生理和形態上的差異很可能反映了它們內部某些基因的表達受到了影響、代謝調控發生了紊亂，具體和詳細的作用機制還需要進一步的研究。
  8. Soil quality - laboratory incubation systems for measuring the mineralization of organic chemicals in soil under aerobic conditions iso 14239 : 1997

    土壤質量.在需氧條件下土壤中有機化合物礦化的測量用
  9. Firstly we maked sure method of isolating arabidopsisis mutant by thermal imagings in many ways on trial, optimize conditions for isolation, and confirm the good period of seedlings and fine density for isolation, select correct isolating pressure ( drought and h2o2 ) that is fit for isolate mutant. secondly we obtain an ml population derived from 0. 4 % ethyl methanesulfonate ( ems ) - mutagenized wild type arabidopsis thaliana

    本實驗首先是對利用遠紅外成像技術篩選擬南芥突變體方法的可行性進行多方面的試驗，優化篩選條件、確定篩選所需幼苗的生長時間、種植密度，界定用於篩選所需的脅迫（過氧化氫和乾旱）選擇壓力。
  10. And this biology reaction provides certain precondition for the cure of diseases. for instance, when magnetic field starts to do effect on human body, it will help to convey nutrition and oxygen to tissue cells of every part of the body as well as transmit waste made by tissue cells to the outside by expanding the blood vessel, speeding up blood current and improving blood circulation. as quite a number of diseases are usually caused by blood circulation disturbance, the magnetic field is able to satisfy the demand of tissue cells in both aspects, hence, cure the above diseases

    磁場雖然看不見，摸不著，但它是一種物理能量，物理治療因素，作用到人體后，在體內引起一系列生物學效應，而這些生物效應，為治療某些疾病提供了條件，舉個例子說：磁場作用到人體后，可使血管擴張，血流加快，改善血液循環，可以把組織細胞需要的營養物質氧氣送到全身各處組織細胞，又可把組織細胞的代謝廢物帶走，而不少病癥與血液循環障礙有關，磁場可以幫助「滿足」組織細胞的兩方面需要，與以上有關的疾病就可以得到治療。
  11. Standard test method for determining aerobic biodegradation of plastic materials under controlled composting conditions

    在受控合成條件下測定塑料材料需氧的生物降解的標準試驗方法
  12. Test method for determining aerobic biodegradation of plastic materials under controlled composting conditions

    受控混合條件下測定塑料需氧生物降解的方法
  13. The sample composition was analyzed by means of tg and x - ray diffraction. the following conclusions can be drawn from the experiments : given conditions, the sample powder that has the same xrd data as the standard fetioa can be gotten when use any method mentioned above ; the key in synthesis is to avoid the oxidation of fe2 +, so the whole process should performed under vacuum or neutral atmosphere, samples used by this study were prepared under nitrogen atmosphere ; the heat - treated time and temperature have some influence on the sample powder, results show that the proper time and temperature is 120 minutes and 1100 respectively

    研究結果表明：在合適的反應條件下，用上述三種合成方法都能得到xrd數據與標準fetio _ 3物相基本吻合的粉體；合成反應需要克服的主要問題是防止體系中fe ~ （ 2 + ）的氧化，因此，整個反應必須在真空或者非氧化性氣體保護下進行，本研究需要的樣品是在高純從保護下合成的；煅燒的時間和溫度對最終的產物也有一定的影響，研究發現：合理的煅燒時間和溫度分別為120分鐘和1100 。
  14. Soil quality - guidance on laboratory testing for biodegradation of organic chemicals in soil under aerobic conditions iso 11266 : 1994

    土質.需氧條件下土壤有機化學藥劑生物降解實驗室試驗
  15. It was still a technical problem on how to add the air to the reactor in so small pressure difference. in addition, the photocatalytic reaction efficiency was very low at the high speed. the reactor will be large, the price will be very high and the electricity will be enormously consumed during the photocatalytic - oxidation of h2s in the methane

    主要原因是沼氣中不含氧，使用時氣體流速大，壓差小，而用光催化氧化方法消除h _ 2s需要有相當量的氧參與，在壓差很小的情況下，一次空氣的加入存在技術困難；在高氣體流速條件下，光催化效率低，若用光催化方法消除h _ 2s ，反應設備龐大，耗電量高，價格昂貴，農民難以負擔。
  16. But because of the characteristic of the open absorption refrigeration cycle, problems of continuous abstraction of uncondensable gas automatically and corrosion to pipe columns in the absorber when oxygen is separated from libr - h2o will appear. to solve them, more experiments and design efforts must be done in the future

    但由於開式循環的特點，產生的不凝氣體的連續自動抽除問題、溴化鋰溶液在析出的微量氧氣條件下對吸收器管束的腐蝕問題等，均需要通過實驗和系統完善設計的方法來加以解決。
  17. According to the requirement of innovation engineering in chinese academy of sciences, the work in this thesis focused on fabrication of soi material with epitaxial layer transfer of porous silicon and study of luminescence of modified porous silicon, and we obtained the following new results : the effect of doping and anodizing condition on the properties of porous silicon, including the microstructure, ciystallinity and surface morphology, has been studied systematically. it is found that the porous silicon and substrate have the same orientation and share a coherent boundary. but at the edge of pores, the lattice relaxes, which induces xrd peak moving of porous silicon

    Soi技術和多孔硅納米發光技術研究是當今微電子與光電子研究領域的前沿課題，本文根據科學院創新工程研究工作的需要，開展了多孔硅外延層轉移eltran - soi新材料制備與改性多孔硅發光性能的研究，獲得的主要結果如下：系統研究了矽片摻雜濃度、摻雜類型和陽極氧化條件等因素對多孔硅結構、單晶性能和表面狀態的影響，發現多孔硅與襯底並不是嚴格的四方畸變，在多孔硅/硅襯底的界面上，多孔硅的晶格與襯底完全一致，但在孔的邊緣，多孔硅的晶格發生弛豫。
  18. The work mainly consists of four parts : the first part is to use oxidation and lpcvd technique to produce sio2 mask film and si3n4 insulation film in order to enhance the heating efficiency of micro chamber, and guarantee the carry out of the reaction. the second part is to use the combination of dry etching and wet etching to produce reaction micro chamber, it is the container which carry out the pcr reaction, and dna sample carry out amplification reaction here. the third part is to use the sputtering, photolithography to produce heaters and temperature sensors which heat the reaction micro chamber and provide the temperature condition for the pcr reaction

    首先，利用氧化工藝和lpcvd技術，生長sio _ 2掩膜層和si _ 3n _ 4絕緣層，以提高反應腔的熱效率，保證擴增反應的順利進行；其次，用濕法腐蝕和干法刻蝕相結合的方法加工微型腔體，使之作為dna樣品進行pcr擴增反應的容器；第三，用濺射、光刻等工藝在微型腔體底部製作微型加熱器和溫度傳感器，實現對反應腔體的加熱及其溫度的精確測量，提供pcr擴增反應所需的溫度條件。
  19. Therefore, cod is a conditional indicator, and strict operation procedure must be followed

    因此，化學需氧量亦是一個條件性的指標，必須嚴格按操作步驟進行。
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