最低濃度 的英文怎麼說

中文拼音 [zuìdīnóngdù]
最低濃度 英文
least concentration
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 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
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. With the increasing salt concentration, milk - clotting activity became higher and higher, then reached its peak, and then decreased gradually ; in the early extraction, the speed was quick, the milk - clotting activity was increased obviously. after it amounted to the maximum, the activity became steadily lower steadily ; the increasing temperature in extracting could improve the extraction activity, but too high temperature could result in the denaturation and inactivation ; the greater the ratio of abomasums and butter and was, the quicker speed was when the enzymes was drawn out, and after extracting for twice, most of the enzymes in the abomasums could be drawn out

    隨著食鹽濃度增大，凝乳活性逐漸提高，當達到一定濃度后，凝乳活性又逐漸降低；在提取初期，提取速度較快，凝乳活性明顯提高，當提取達到最大值后，凝乳活性又逐漸下降；隨著提取溫度的升高，凝乳活性逐漸增大，但溫度過高時，會導致酶變性失活；隨著提取液與皺胃比例的增大，酶溶出速度加快，提取次數越多，皺胃中酶提取越充分，提取2次后，皺胃中絕大部分酶被提出。
  2. We used several organic algaecides to remove the phaeocystis globosa red tide. the results showed that povidone - iodine can release iodine slowly to kill and control the p. globosa red tide. the minimum used levels are 30mg / l if we added the povidone - iodine algaecide at the prophase of logarithmic phase

    本文研究了緩釋除藻劑碘伏對棕囊藻的去除作用，發現碘伏有一定的除藻能力，在棕囊藻指數生長期前期加入碘伏，最低有效除藻濃度為30mg / l 。
  3. The altitude of the peak concentration was lowest in the summer.

    在夏季，峰值濃度的高度為最低。
  4. Ammoniac nitrogen enters salt of nitric acid of the translate into after soil, the chroma when arriving at groundwater is less than 30 milligram / litre, far be less than the lowermost standard with drinkable groundwater

    氨氮進入土壤后轉化為硝酸鹽，到達地下水時濃度小於30毫克/升，遠小於地下水飲用的最低標準。
  5. In the experiment of searching the agent for removal of phaeocystis globosa, six organic biocides were studied on their effect of removal of phaeocystis globosa. then isothiazolone biocide, glutaric dialdehyde and benzalkonium bromide were selected to apply to remove p. globosa red tide. their minimum use levels are 1. omg / l, 1. 4mg / l, 0. 6mg / l respectively, and the efficiencies of removal are above 80 %

    論文對有機除藻劑進行了篩選研究，對目前常用於工業循環冷卻水的6種有機殺生劑進行了試驗研究，發現異噻唑啉酮、戊二醛和新潔而滅對棕囊藻均具有良好的去除效果，它們使用的最低有效濃度分別是： 1 . 0mg l 、 1 . 4mg l 、 0 . 6mg l ，除藻率達80 。
  6. Rat cumulus - enclosed oocyte ( ceo ) and denuded oocyte ( do ) both spontaneously resume meiotic maturation in vitro, when cultured for 2h, the germinal vesical breakdown percentage of do reaches up to 88 %, and ceos get 53 %. oocytes begin to extrude first polar body 1 ( fb1 ) when cultured for 8h. mouse oocyte spontaneous maturation in vitro can be inhibited by 4mm hypoxanthine ( hx ) or 25um 3 - isobutyl - methylxanthine ( ibmx ). while, 4mm hx can not inhibit the spontaneous maturation of rat oocyte, and the lowest effective concentration of ibmx to inhibit rat oocyle spontaneous maturation in vitro is 50um. treated with the same concentration of ibmx, gvbd percentage of rat ceo is lower than that of do, the results indicat that cumulus cells delay rat oocyte spontaneous maturation and potentate the inhibition effect of ibmx, but it ' s not the case on mouse

    Ceo和do培養8h時都開始排出pb1 ；在卵母細胞成熟抑制模型中， 4mm次黃嘌呤（ hx ）和25 m的異丁基甲基黃嘌呤（ ibmx ）是小鼠卵母細胞成熟的有效抑制劑，但4mm的hx抑制大鼠卵母細胞成熟效果不理想，用hx - m199和hx - mem培養24h ， gvbd率分別為61 ， 81 ，而ibmx有效抑制大鼠卵母細胞自發成熟的最小濃度為50 m ， ibmx可以降低大鼠ceo和do的gvbd率，但ceo中的卵母細胞gvbd率要顯著低於do的gvbd率， 100 m的jbmx處理24h后，大鼠ceo和do的gvbd率分別為24 ， 84 ，提示卵丘細胞的存在可以延遲大鼠卵母細胞的自發成熟，有助於抑制卵母細胞成熟，但在小鼠上ceo和do的自發成熟差異不明顯。
  7. Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased

    文摘:四種羧酰化甲殼素即乙酰化、丙酰化、丁酰化和己酰化甲殼素在二氯乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側基長度增加而略有增加，衍生物的臨界濃度明顯都比原甲殼素高許多，這些規律都可以用鏈剛性的變化來解釋.四種羧酰化甲殼素在剪切時均能形成條帶織構，而且能形成條帶織構的最低濃度有明顯差別，隨側基長度增加而提高，進一步表明側基較長，液晶性減少
  8. The lowest density that can be achieved in a given photographic or photomechanical system

    中義在指定的攝影或照相系統中能達到的最低濃度值。
  9. 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。
  10. Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "

    W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0
  11. 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。
  12. Single spiral crowed syrup machine is applicable to the dehydration that warious low density syrup anticipate and dredge - solve, according to the pulp consistency pass pneumatic equipments to adjust the syrupcrowede pressure, the adaptability is strong ; the spiral stalk and tube of sieves are made of the stainless steel, corrosion - resistant and durable ; operate conveniently, break down the rate low, produce to have great capacity, maintain the expenses low, the best kit equipments that is high and thick to whet

    描述：本機適用於各種低濃度漿料的脫水和疏解，可根據漿料濃度通過氣動裝置調整擠漿壓力，適應性強；螺旋軸及篩筒均用不銹鋼製成，耐蝕耐用；操作簡單，故障率低，生產量大，維修費用低，是高濃磨的最佳配套設備。
  13. The afm scans has shown that the sample ' s external configuration has not been defaced. the uv - vis instrument test has shown that the absorb spectrum has been move 12nm - 18nm to the infrared. with different power and implanting time, the feasible conditions are under the four hundred watt and sixty minutes

    研究表明，注入時間和注入功率對納米tio _ 2的光吸收有較大影響，氮的注入量存在一個最佳濃度值，摻雜劑濃度太高或太低，均不利於提高納米tio _ 2的光吸收。
  14. Results ( 1 ) effect of different concentration of lead on the activity of pkc for the control, the activity of pkc increased gradually at the early devel - opping stage and rose sharply on the 15th day, reached the peak, then decreased on the 22nd day and increased shortly until the 30th day with the activity almost turned back to the level at birth or even lower. compared with the control, groups treated with different concentration of lead showed a graph of different cytoplasmic activity of pkc. most of the groups reached the peak at p15, but the 0

    L ）鉛暴露小鼠腦胞漿pkc活性與正常組相比可見一定的差異，多數組第15日問）為最高峰，低濃度染鉛組在某些時段中pkc比活性高於正常組，而隨著鉛濃度的升高，這些時段的pkc活性逐漸降低，較高鉛濃度組酶活性均低於正常組； inunovl汐）組的p22以後，比活性迅速升高，至p30時比對照組高出很多。
  15. Immunobiologic activity evaluation of gpif : both e rosettes experiment and lymphocyte proliferation assasy showed that immunobiologic activity of gpif steadily exited dose - effect relations, namely, the low concentration ( 0. 125mg / ml ) activity was lowwer, with the concentration increasing, immunobiologic activity of gpif gradually increased, when it was at the 0. 5mg / ml, immunobiologic activity of gpif reached summit

    表現為低濃度（ 0 . 125mg / m1 ）免疫生物活性較低，隨著gpif濃度升高而活性逐漸增強，到0 . smg / m1濃度附近時免疫生物活性達到最高，之後逐漸減弱。 gpif免疫生物活性劑量效應曲線呈正態分佈。
  16. Addition of iptg to growing culture of the lysogen induces t7 rna polymerase, which in turn transcribe the target dna in the plasmid. in the presence of glucose and appropriate conditions such as temperature and concerntration of iptg, a 52kd protein with tryptopanase activity was expressed

    摸索發酵條件，如改變培養溫度和iptg濃度等，發現在30培養條件下， 0 . 2mmiptg誘導時，發酵液中的吲哚含量最高，表明低濃度的誘導劑或低溫誘導有利於表達出有活性的色氨酸酶。
  17. Its activity was most when the concentration of naci was 0. 1 mol / l. when the concentration of naci was above 0. 1 mol / l, the activity of dnaase was declining along with the increasing of the co

    4 ，最適溫度為41 ，可被mgy 、 h 》 、 mlly明顯的激活；低濃度的可提高該酶的活性。
  18. According to morphologic characteristics. when cultured in liquid medium, cadmium with initial concentration below 4. 61mg / l did n ' t inhibited the growth of f2, 163. 8mg / l of cadmium affected it obviously but growth continued to a great extent. cadmium removal from medium by f2 under liquid culture was not so stable with low cadmium concentration below 4. 61mg / l, but removal ratio reached 96 % with initial cadmium concentration of 163. 8mg / l and cadmium content of biomass reached 28 %, which showed high capacity of cadmium accumulation by f2

    F2在液體培養時，培養基初始鎘濃度在4 . 61mg l以下時對其生長無抑制作用，鎘濃度為163 . 8mg l時有較大影響，但仍有明顯生長； f2對液體培養基中低濃度鎘（ 4 . 61mg l以下）的去除效果不太穩定，但初始鎘濃度為163 . 8mg l時，其去除率為96 ，菌體最大鎘含量可達28 ，顯示了較大的富集容量。
  19. It meaned that simulated acid rain made the toxic effects of zn or cd on growth of the plants more serious. the fresh weights and chlorophyll contents of phaseolus vulgaris l were the highest when ph value of acid rain was 4. 5, zn concentration was 60 mg / kg, and or cd concentration was 0. 5 mg / kg. this showed that lower acidity of simulated acid rain and lower concentrations of zn or cd could promote growth of the plants

    本試驗中，酸雨加zn或者酸雨加cd使小白菜鮮重小於單一污染處理，說明酸雨增加了zn 、 cd對小白菜的毒害作用；而當酸雨ph值為4 . 5 、 zn濃度為20mg / kg或cd濃度為0 . 5mg / kg時，四季豆鮮重達到最大值，這表明低強度的酸雨和低濃度的zn 、 cd促進四季豆的生長。
  20. 5 - azacytidine in low concentration promoted flowering of variety youdonger but inhibited flowering of it in high concentration. the optimum concentration were 250ujnol / l

    低濃度5 - azac促進油冬兒白菜開花，但高濃度時抑制開花，以250 mol l促進開花的效果最理想。
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