concentration key 中文意思是什麼

concentration key 解釋
集合按鍵
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  • 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. Pianist jarrett, drummer jack dejohnette, and bassist gary peacock play two complete sets of standards in this 1993 japanese concert. watching them is fascinating - especially jarrett, eyes scrunched in concentration, writhing intensely, coaxing and wrenching ideas from his keyboard, and punctuating his improvisations with weird, off - key vocalisms. but listening to them is even better

    當今聲譽最隆的爵士三重奏現場演出，水準之高不在話下，這張dvd畫面密度之高與顏色之真實顯示此乃採用high definition器材攝制之紀錄片，近鏡時演出者臉部細節有凸出來之效，而且幾種樂器亦色彩通透鮮明，其立體感令人驚嘆不已。
  2. But compared with the bloomy commodity market, the capital market of china has big trouble in managing social resource efficiently, especially the securities market. it results in the risk concentration on the bank system which was on the key points of reform and impacts the social construction

    嚴重限制了其社會直接融資和配置資源功能的發揮，造成社會大量資源形成儲蓄和游資，一方面將風險積聚于正處于改革攻堅階段的銀行系統，另一方面對社會建設和產業發展形成較大沖擊。
  3. This paper analyzes the fire danger factors for torching system and vent pipe, and addresses the key design matters of deployment, height, discharging capacity and automatic monitoring device of torch as well as the discharging gas concentration, installation position and security device of the vent pipe

    文章分析了火炬系統和放空管的火災危險因素，並從火炬的布置、高度、排放能力、自動監控裝置以及放空管的氣體排放濃度、安裝位置、安全裝置等方面，重點論述了火炬系統和放空管的消防安全設計要點。
  4. Some key points are resolved with advanced software design conception and technology, and a nitrogen tetroxide concentration monitor with sound and light alarm is developed

    通過採用先進的軟體設計思想與技術，解決了幾個關鍵問題，成功地研製出了具有聲光報警功能的高性能四氧化二氮毒氣濃度監測儀。
  5. This paper introduces the latest progress of high level radioactive waste disposal programs in the world, and discusses the key scientific issues as follows ： ( 1 ) the precise prediction of the evolution of a repository site ; ( 2 ) the characteristics of deep geological environment ; ( 3 ) the behaviour of deep rock mass, groundwater and engineering material under coupled conditions ( intermediate to high temperatures, geostress, hydraulic, chemical, biological and radiation process, etc ) ; ( 4 ) the geochemical behaviour of transuranic radionuclides with low concentration and its movement with groundwater : and ( 5 ) the safety assessment of disposal system

    在介紹國內外最新研究進展的基礎上，重點討論高放廢物地質處置的若干關鍵科學問題：處置庫場址地質演化的精確預測、深部地質環境特徵、多場耦合條件下（中（高）溫、地殼應力、水力作用、化學作用、生物作用和輻射作用等）深部巖體、地下水和工程材料的行為、低濃度超鈾放射性核素的地球化學行為與隨地下水遷移行為及處置系統的安全評價。
  6. The construction of the composite information prospecting model for deposit concentration areas and the composite information prognostic model for deposit concentration areas seems to be the key problem in the prognosis

    由於貴金屬與有色金屬大型、超大型礦床密集區控礦因素的共性，故成礦系列理論應用於大型、超大型礦床預測是今後研究的主攻方向。
  7. Three experimental models were constructed, on the basis of the distribution and diffuse of the main production dust source. the experiments of dust transport and concentration distribution were done for many times, then show that the air velocity and dust distribution are the key factors which control dust distribution of the area nearby dust source

    根據礦井主要生產性塵源的分佈及發塵特徵，構建了3種實驗模型進行粉塵運移和濃度分佈實驗.結果表明，風速和塵源是決定塵源附近區域粉塵分佈的關鍵因素.圖8 ，表2 ，參3
  8. The key to the english recovery following the wars of the roses had been henry vii's concentration upon domestic stability and financial prudence.

    玫瑰戰爭以後英國的元氣恢復的關鍵在於亨利七世著力于國內穩定和緊縮財政開支。
  9. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1型電化學抑制柱為例，分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度，因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率，在通常情況下電流效率可達到90以上；在選用同種離子交換膜的前提下，可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量，因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱，該抑制柱最高可將流速為1 . 0ml / min ，濃度為200mmol / l電導率超過10000 s ? cm ~ （ - 1 ）氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ （ - 1 ）的純水，並且具有穩定性高、分析結果準確等優點。
  10. Sperm quality was assessed in a number of ways, for instance movement and concentration were two key indices

    通過多個方面評價精子質量，包括其中最重要的兩個方面：運動力與濃度。
  11. Research points out that the three key factors, which determine the nox emissions, are maximum peak temperature, rich oxygen concentration and the duration in which combustion products stay at high temperature zone

    船舶柴油機的氮氧化物主要是山于大氣中的氮在柴油機燃燒過程中被氧化而成。研究表明高溫、富氧以及燃燒產物在高溫區的停留時間是決定氮氧化物排放量的三個決定因素。
  12. We found it a key to pay attention to the facts of current efficiency as well as relative ferrate concentration and simplifying the procedure of precipitation and purification so as to raise the technique level of preparing ferrate ( vi ) by the method of electrolysis

    本文通過總結現有制備高鐵酸鹽的工藝方法尤其是電解法的有關文獻發現，兼顧電流效率和相應的高鐵酸鹽濃度水平以及簡化結晶純化手續是提高電解法制備高鐵酸鹽工藝水平的關鍵。
  13. The height of media 、 the ratio of gas to liquid 、 hydraulic loading 、 the organic and ammonia loading of influent are the key factors influence the performance of one - stage aerobic baf. the conclusions of the experiment are as following : the best height to remove the organic matter and ammonia is at 60cm 、 120cm from the influent side respectively. the best ratio of gas to liquid is 3 : 1 4 : 1 ; the organic and ammonia loading of influent have litlle influence on the performance of one - stage aerobic baf when the concentration are low ; whe the ratio of gas to liquid is 3 : 1, the ammonia loading is blow 0. 87kgnh _ 4 ~ + - n / m ~ 3. d, the enfluent concentration of ammonia is blow 5mg / l which satisfies the water reuse standard ; at different organic loadings, the removal of organic matter keeps 35 % 45 %. hypothermia is unfavourable to nitrification for one - stage aerobic baf to removel ammonia, the influent concentration of ammonia can ’ t satisfy the water reuse standard

    試驗表明:對有機物的去除主要發生在進水端60cm內，對氨氮的去除主要發生在進水端120cm內;曝氣生物濾池運行的最佳氣水比為3 : 1 4 : 1 ;在進水有機物和氨氮濃度比較小時，水力負荷對其去除率影響不大;在氣水比為3 : 1 ，進水氨氮負荷小於0 . 87kgnh4 + - n / m3 （濾料） ? d時，出水氨氮小於5mg / l ，滿足回用水的要求;在不同有機負荷下，有機物去除率保持在35 % 45 % 。
  14. Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection

    迴流比為2 : 1 ，水力負荷為2 . 55m3 / m2 ? h ，好氧柱氣水比為3 : 1時試驗表明:不同的c / n （ 1 . 05 7 . 45 ）下，兩級曝氣生物濾池對有機物有很好的去除作用，出水有機物濃度小於7mg / l ，其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加，系統出水氨氮濃度降低，當c / n為3 . 60時，出水氨氮濃度降到3 . 05mg / l ，已經滿足回用水的氨氮標準; c / n < 3 . 60時，因為缺氧柱的不完全反硝化，體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加，當c / n為3 . 60時，出水總氮已經降到11 . 18mg / l ，滿足回用水的要求。
  15. Abstract : concentration polarization and fouling of membrane are the key problen which has effected in widening use of microfiltration. based on understanding on the flux decline and lateral migration deposition of porticles in tubular membrane, some analysis on effect factors of enhancement of microfiltration within tubular membrane with rotation flow is introduced, in this paper

    文摘:濃差極化和膜污染是阻礙微濾廣泛應用的關鍵難題，在認識理解顆粒遷移沉積和過濾速率下降的基礎上，本文對旋轉流管式膜微濾進行了一定的探討分析。
  16. The experiments show : growth temperature is one of the key growth parameter by which the surface morphology, alloy composition, crystalline quality, mobility and carrier concentration are influenced

    實驗表明：生長溫度是一個重要的生長參數，它對外延層的表面形貌、組分、結晶質量、遷移率、載流子濃度有著很大影響。
  17. Lactide were investigated. the key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times, stannous octoate concentration and polymerization time. the thermal stabilizing agent did not significantly affect the polymer molecular weight. the polymer with a viscosity average molecular weight beyond 200000 was fairly reproducible by optimizing the polymerization conditions. it was found that poly

    單體重結晶次數辛酸亞錫濃度聚合時間等條件均是影響聚合物特性粘數的重要因素。熱穩定劑對聚丙交酯的分子量幾乎沒有影響。優化聚合條件可以獲得粘均分子量大於200000的聚丙交酯材料，聚合結果具有良好的重復性。
  18. As the key of the sample injection, a digital control instrument of mass flow controller ( mfc ), which can work in online and offline mode, was designed. it can give 4 flow signals accurately at the same time. the concentration and flux of the sample gas can be set by the instrument software

    進樣裝置的核心是自行設計開發的新型流量控制儀，該儀器採用數字介面，可以以聯機和脫機方式工作，能夠同時快速準確地輸出4路流量控制信號，對測試氣體的流量和濃度進行設定。
  19. In the past half century, the research of using this theory to measure the concentration of protein in milk has not been successful, which is the key reason of not inventing multi - ingredient milk measuring instrument by this theory

    但是半個世紀以來利用該原理測量牛乳蛋白質的研究卻始終沒有成功。這是迄今沒有利用該原理研製出牛乳多成份測試儀的關鍵所在。
  20. Sperm quality was assessed in a number of ways, for instance moement and concentration were two key indices

    精液的質量用了許多評價方法，其中即刻的活動能力和濃度是兩主要的指標。
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