限定濃度 的英文怎麼說

中文拼音 [xiàndìngnóngdù]
限定濃度 英文
finite concentration
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 限定 : prescribe [set] a limit to; limit; restrict; determine; define; qualify
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. In this thesis, the oxygen sensitive materials and glucose sensitive materials had been developed by thermo - polymerization method including carrier covalence method and carrier covalence - cross linking method, and the properties had been investigated using the detection experiment of oxygen and spectrophotometer, at the mean time, the applications of oxygen sensitive materials in fiber optical gaseous oxygen sensor and fiber optical dis solved oxygen sensor, and that of biology sensitive materials in fiber optical dextrose sensor had been studied in this paper. major content of this work includes five aspects as follows : ( 1 ). oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by fi - ir, sem, and the detection experiment of oxygen

    本論文主要包括以下五個方面的內容： （ 1 ）載體共價法制備氧敏感材料：通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理，通過氧測試實驗評價該氧敏感材料的氧敏感性和穩定性，同時研究了各種因素對該氧敏感材料性能的影響（ 2 ）載體共價?交聯法制備氧敏感材料：通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理，通過氧測試實驗和分光光度計評價該氧敏感材料的氧敏感性和穩定性，同時研究了各種因素對該氧敏感材料性能的影響（ 3 ）氧敏感材料在光纖氣態氧傳感器中的應用：該傳感器的響應時間為10s ，檢測下限為5ppm ，檢測精度為0 . 5 ，具有較好的重復性和穩定性，遲滯較小，使用壽命至少為1年，適合各種環境下氣態氧濃度的檢測。
  2. Through the study of three factors of a, s, c in lunan area, we have found that, under the modem natural conditions, the actual height of stone pillars is still increasing at the rate of 15. 77mm / ka, and their visible height 639. 6mm / ka, moreover, soil layer which is one of the most important driving forces for the heightening of stone forest is quickly becoming thiner and thiner at the speed of 623. 83mm / ka

    同時，研究也表明，土壤co :的最大濃度主要出現在土下60一120cm ，土壤水的含量在土下60一80cm處也較大，由此決定了土下最大溶蝕強度主要分佈在土下150cm內，包氣帶強溶蝕循環帶的下限約在土下iom處。因此，在厚達數百米的路南群的覆蓋之下，是不可能發育石林的。
  3. The legal limit of blood alcohol concentration was tightened in october 1999 from 80 to 50 mg of alcohol per 100 ml of blood

    血液中含酒精濃度的法定限度，已於一九九九年十月由每100毫升血液含80毫克酒精收緊至50毫克。
  4. According to finite element segmentation principle, by combining test with observation, the author has measured the air streamline and speed distribution of burning equipment in dally situation, which provides some guide for research of air field in hearth on cold and hot conditions. and the law is found of air speed distribution by measuring its speed and distribution of upper and lower deck on cold condition, thus it lays the foundation for analysis on hot condition. under four burning states, we measure the air speed in single, double - deck, and find out its corresponding distribution law

    5 .根據有限元分割原理布置測點，採用降溫方法，用k五江9106等儀器分別測出單雙爐排燃燒方式4種不同工況下，該燃燒設備爐膛內coz 、 02 、 co氣體濃度，並找到了隨爐膛高度方向及深度方向變化規律;從燃燒原理分析評價了2種燃燒方式爐膛內coz 、 02 、 co氣體濃度場分佈特點及相應燃料層內乾燥、干餾、氧化、還原、灰渣層厚度，肯定了雙層爐排燃燒方式爐膛中c02 、 02 、 co氣體濃度場分佈合理性，從燃燒理論找出了最佳濃度場分佈狀態及燃料層內各反應層厚度。
  5. Noninstrumental method : the lod is generally determined by the analysis of samples with known concentrations of analyte and by establishing the minimum level at which the analyte can be reliably detected

    非儀器分析目視法：通過用已知濃度的樣品分析來確定可檢出的最低水平作為檢測限。
  6. The antioxidant abilities of protective enzymes were enhanced in restricted range by hg2 + stress in the early period and the lower concentrations, which were weaken because of the further exposure, especially in liver

    抗氧化酶系統在受到低濃度及染毒初期的一定限度內能被誘導而加強，但隨著重金屬毒害加深而減弱，尤其是肝組織。
  7. In the second place, based on the asu of buggenum igcc plant in netherlands, both static and dynamical model for distillation tower of the asu are created and some valuable conclusions are gained as well. finally, a compartmental simplified model is created for distillation tower of the asu, in order to reduce the simulation time and increase the simulation efficiency. the new model will be helpful to the further simulation and on - line optimal control for the asu of the igcc plant

    其次，本文以荷蘭buggenum電站的空分系統為原型，基於matlab建立了空分系統精餾塔的半圖形化動、靜態數學模型，並通過模擬，得出了一些有價值的結論：當空分系統的壓力變化時，氧氣產品濃度的響應時間常數為兩小時左右，說明空分系統是igcc電站最大延遲環節；而且雖然氧氣濃度最後會穩定在igcc電站所要求的范圍之內，但在過渡過程中會超出限制，這些都為igcc電站的安全運行及控制系統設計提供了有價值的信息。
  8. Determination for minimum explosive concentration of dust cloud

    粉塵雲爆炸下限濃度測定方法
  9. Dctermination for minimum explosive concentration of dust cloud

    粉塵雲爆炸下限濃度測定方法
  10. All results indicated that cd2 + had obvious harm to the enzymes. the endogenous protective system could be induced in refained degree under the press, however, which came to weakening along with the aggravation of cadmium, adding to extrinsic calcium could enhance the activities of sod and atpase properly, so protecting the damage of cadmium to the fish

    鎘對草魚酶系統有明顯的毒害作用，內源性保護系統的保護作用在受到脅迫后能夠在一定限度內被誘導加強，但防禦反應隨著重金屬離子毒害的加重而減弱，提高水中ca ~ （ 2 + ）濃度能夠適當增強體內酶的活性，對草魚的鎘毒性危害起保護作用。
  11. Instrumental method : the estimate value of loq is the concentration when the signal - to - noise ratio is 10 ： 1

    儀器分析方法：一般以信噪比為10 ： 1時相應的濃度作為定量限的估計值，然後配製相應定量限濃度的樣品，反復測試來確定。
  12. According to gaseous " molecular kinetic, the mass diffusion rate is within finite value. so theoretical conclusion of mass flux ' s producing and the essential relation of flux vs. force could be drawn. with the assumption that local density states in near equilibrium and the distribution is gradual changed, the classical first pick ' s law was modified considering mass relaxation time

    根據氣體分子運動論對質量傳播速度為有限值情況下的質量流的產生及流與力之間的本構關系作了理論推導，在假定局域濃度處于近平衡態，其分佈為漸進的情況下得到了考慮質量鬆弛作用的經典fick第一定律的修正式。
  13. In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的
  14. Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的
  15. 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。
  16. For the acute exposure duration, there expressed the dose - thresholds and time - thresholds in the effects of cu2 + on the activities of cat, pod and sod in two macrophytes. when the test species were exposed at low dose and for a short period, cu2 + can stimulate activities of antioxidant enzymes. once exceeding the thresholds, cu2 + may inhibit enzymes activities

    Cu ~ （ 2 + ）低濃度和短時間內對抗氧化酶有誘導作用，超過一定的閾限會產生抑制作用；金魚藻cat 、 pod 、 sod活性在7天內的最大抑制率與暴露cu ~ （ 2 + ）濃度呈顯著正相關。
  17. Standard practice for determination of odor and taste thresholds by a forced - choice ascending concentration series method of limits

    用強制選擇提升濃度限值系列法測定氣味和味道閾限的標準實施規程
  18. Have not been convicted of section 36 causing death by dangerous driving, section 39 driving a motor vehicle under the influence of drink or drugs, section 39a driving, attempting to drive or being in charge of a motor vehicle with alcohol concentration above prescribed limit, section 39b screening breath tests and section 39c provision of specimens for analysis of the road traffic ordinance cap. 374 during the 5 years preceding the application

    在過去五年並無觸犯道路交通條例（第374章）第36條（危險駕駛引致他人死亡） 、第39條（在酒類或藥物影響下駕駛汽車） 、第39a條（在體內酒精濃度超過訂明限制的情況下駕駛、企圖駕駛或掌管汽車） 、第39b條（檢查呼氣測試）或第39c條（提供樣本以作分析）所訂罪行而被裁定罪名成立。
  19. Have not been convicted of section 36 ( causing death by dangerous driving ), section 39 ( driving a motor vehicle under the influence of drink or drugs ), section 39a ( driving, attempting to drive or being in charge of a motor vehicle with alcohol concentration above prescribed limit ), section 39b ( screening breath tests ) and section 39c ( provision of specimens for analysis ) of the road traffic ordinance ( cap. 374 ) during the 5 years preceding the application

    在過去五年並無觸犯道路交通條例（第374章）第36條（危險駕駛引致他人死亡） 、第39條（在酒類或藥物影響下駕駛汽車） 、第39a條（在體內酒精濃度超過訂明限制的情況下駕駛、企圖駕駛或掌管汽車） 、第39b條（檢查呼氣測試）或第39c條（提供樣本以作分析）所訂罪行而被裁定罪名成立。
  20. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
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