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  改变
     The Study on Interstitial Cells of Cajal Changed in Mouse Colon of Slow Transit Motility and the Role of Nitric Oxide and Carbon Monoxide
     Cajal间质细胞在小鼠结肠慢传输运动模型中的改变及其与一氧化碳和一氧化氮的作用研究
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     New Mutagen, Glycidyl Methacrylate (GMA) Changed Restriction Enzyme Map of Plasmid
     新诱变剂甲基丙烯酸环氧丙酯对质粒限制酶酶谱的改变
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     Relationship between QT and RR Interval in the Cardiac Cycle Abruptly Changed by Premature Beats
     早搏引起心动周期突然改变时QT间期和RR间距的关系
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     Results After treatment with rotenone for 24 hours, PC12 cells showed evident morphological changes and higher apoptosis rates, and the changes became more evident as a higher-dose rotenone was given. Pretreatment with MEK inhibitor PD98059(20 μmol/L) for an hour had not changed cell apoptosis rates significantly compared with rotenone intoxication merely.
     结果鱼藤酮处理24h后PC12细胞形态明显改变且凋亡率增加,20μmol/LMEK抑制剂PD98059预处理1h与单纯鱼藤酮染毒比较凋亡率没有显著性改变;
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     Some characteristic spectrums are shifted(for example:1745cm-1,1378cm-1,1465cm-1,970cm-1),and the intensity of them have changed.
     某些特征谱带(如:1745cm-1,1378cm-1,1465cm-1,970cm-1)发生频移,谱带强度发生改变
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  变化
     THE CHANGED WORLD ECONOMY
     已经发生变化的世界经济
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     DISCUSSION OF CURING HEADACHE AND THE SIX CHANGED METHODS OF CHUANXIONGCHATIAO POWDER
     头痛证治与川芎茶调散变化六法探讨
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     Study on Structure Changed of Substitution Reaction of [Co(NH_3)_4CO_3]Cl and NH_4SCN
     用气相色谱研究[Co(NH_3)_4CO_3]Cl与NH_4SCN取代反应中配合物的结构变化
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     Analysis of Gaussian Modes Changed by Hard Apertured Resonators with Matrix Methods
     带硬边光阑谐振腔高斯模式变化的矩阵方法分析
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     Metabolic Changed of GSH Content in Erythrocyte of the infection Anaemia Patients
     感染性贫血病人红细胞内谷胱甘肽代谢变化
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  发生变化
     THE CHANGED WORLD ECONOMY
     已经发生变化的世界经济
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     ResultThe results of measurement showed that the femoral anteversion after fixation with interlocking intramedullary nailing was changed in all patients. The anteversion of the femoral shaft fracture ranged from 13.35°to 47.21°.
     [结果]所有入选病例的伤侧前倾角均发生变化,股骨干骨折的前倾角变化最大,为-13.35°~47.21°。
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     Conclusion Rho/ROCK signaling pathways are changed in the process hepatic fibrogenesis.
     结论Rho/Rho激酶信号转导通路在肝纤维化形成过程中发生变化
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     RCS-9653 type automatic throw-in equipment of emergency power supply can be applied in substation bus arrangement under 220kV voltage class,however,in substations applied two-wire system,when mode of operation changed,there were still some problems that can’t meet the requirement.
     RCS-9653型备用电源自投装置可实现220 kV电压等级以下,不同电气主接线方式的变电站和发电厂内多种备用电源自投情况,但是,对于变电站电气主接线为双母线接线的变电站,当运行方式发生变化时,目前的RCS-9653型备用电源自投装置还存在一些问题,不能灵活地满足运行方式变化的要求。
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     It was found that the electrical resistance of CdIn2O4 films was sensitively changed on exposure to CO gaseous ambient, and greatly enhanced after increasing temperature and growth discontinuous Pt particles on films surface.
     研究还发现CdIn2O4膜电阻在CO气氛中十分敏感的发生变化,并且提高温度和在膜上生长不连续的Pt粒子可进一步增强气敏特性。
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     STABILITY FOR THIRD-ORDER LINEAR HOMOGENEOUS DIFFERENTIAL EQUATIONS WITH SLOWLY CHANGED COEFFICIENTS
     具有缓系数的三阶线性齐次方程解的稳定性
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     DPCM Coding with Adaptively Changed Coefficients for Image Signals
     图象信号的自适应系数DPCM编码
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     STABILITY OF LINEAR NEUTRAL DIFFERENTIAL EQUATIONS WITH COEFFICIENTS SLOWLY CHANGED
     缓系数线性中立型系统的稳定性
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     The Abstract Enclosure Changed Function and Abstract Absolute Continuous Function in the Based Banach Space
     在具有基的Banach空间中的抽象囿函数和抽象绝对连续函数
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     Stability of Solutions of a Class of Stieltjes Differential Systems with Changed Coefficients
     一类系数Stieltjes微分系统解的稳定性
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    In order to get these second-order error estimates, the Joule heating source is used in a changed equivalent form.
          
    To solve the nonlinear partial differential equations is changed into solving some algebraic equations by using the function U to be expressed as linear independent functions.
          
    The transmittance passing through the cell between crossed polarizers changed periodically with a regular 90° separation of the rotational angle.
          
    ansu, whose fine root biomass changed little in different pot culture media.
          
    After NW and NS treatments, the surface energy of both earlywood and latewood changed a little.
          
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    1. A brief review of the assay processes of liquorice root is made. 2. After investigating the more important stages in the processes of Houseman and Fahmy, the following improvements are made to obtain a more complete separation of glycyrrhizic acid: (1) duration for the precipitation of glycyrrhizic acid is prolonged from 2-fe- hours employed by Houseman to 24 hours; (2) concentration of the sulphuric acid usad for the precipitation of glycyrrhizic acid is changed from 0.3 per cent employed by Houseman...

    1. A brief review of the assay processes of liquorice root is made. 2. After investigating the more important stages in the processes of Houseman and Fahmy, the following improvements are made to obtain a more complete separation of glycyrrhizic acid: (1) duration for the precipitation of glycyrrhizic acid is prolonged from 2-fe- hours employed by Houseman to 24 hours; (2) concentration of the sulphuric acid usad for the precipitation of glycyrrhizic acid is changed from 0.3 per cent employed by Houseman to 1.4 per cent; (3) temperature for the precipitation of glycyrrhizic acid is lowered from room temperature employed by Fahmy to 6-7°C. 3. Benedict's quantitative solution is used in place of Fehling's solution in the titration of reducing sugars, because the former solution is more stable and has better keeping properties. 4. An improved process for the assay of liquorice root is described. Five samples of Chinese liquorice root have been assayed by this method. The results obtained are as follows: water-soluble extractives, 26.17—35.59 per cent; glycyrrhizic acid 5.49—10.04 per cent; total reducing sugars, 4.70—10.97 per cent; starch and gummy matter, 4.17—5.92 per cent; water, 8.04—8.93 per cent; ash, 3.06—4.24 per cent; acid-insoluble ash, 0.25—0.65 per cent. The above results showed that the samples assayed fully conform with the requirements of the pharmacopoeias of most countries.

    1.本文简述了前人分析甘草成分所用的方法,並對Houseman氏及Fahmy氏所用方法的主要步驟進行了比較研究,改進了他們的操作方法. 2.為了便利更完全地分離甘草根中所含的甘草酸,我們進行了下列修改:(1)將Houseman氏沉澱甘草酸的時間由2.5小時延長至24小時;(9)將Houseman氏沉澱甘草酸時所用的硫酸濃度由0.3%提高至1.4%;(3)將Fahmy氏沉澱甘草酸時的温度由常温降低至6—7C°. 4.由於非林氏試液很不穩定,應用、貯存均感不便,故採用班乃第氏定量試液.用轉化後的糖液滴定一定量的班乃第定量試液,以测定總還原糖量. 6.本文報告了對五種国產甘草成分分析的結果;水溶物26.17—35.59%,甘草酸5.49—10.04%,總還原糖4.70—10.97%,澱粉及膠質4.17—5.92%,水分8.04—8.93%,灰分3.06—4.24%,酸不溶性灰分0.25—0.65%.並證明上述樣品完全符合於中、蘇、英、日、美各国藥典規定的甘草品質標準.

    Observations were made to compare the effect of HCl introduced into the small intestine of dogs on pancreatic secretion in the following three conditions: (1) Acute experiments with barbiturates(pentothal sodium or pentobarbital sodium) as an(?)sthesia; (2) Chronic experimental dogs with Thomas pancreatic fistula; (3) Chronic dogs in(2) an(?)sthetized by means of the same barbiturates as in the acute experiments. The results indicated that in the acute experiments, the latent period of pancreatic secretion was...

    Observations were made to compare the effect of HCl introduced into the small intestine of dogs on pancreatic secretion in the following three conditions: (1) Acute experiments with barbiturates(pentothal sodium or pentobarbital sodium) as an(?)sthesia; (2) Chronic experimental dogs with Thomas pancreatic fistula; (3) Chronic dogs in(2) an(?)sthetized by means of the same barbiturates as in the acute experiments. The results indicated that in the acute experiments, the latent period of pancreatic secretion was about 3-5 minutes and the amount secreted was usually below 20 drops in the first 30 minutes after the introduction of the acid. But in the case of chronic experiments, the results were quite different. The latent period was shorter, usually less than 2 minutes and the amount of pancreatic secretion was usually 10 times as much as in the acute experiments. Moreover, the pancreatic secretion of the chronic fistula dogs was not changed either in latent period or in amount when under the barbiturate an(?)sthesia. From the above results, it is quite natural to assume that the influence of the barbiturate an(?)sthetics, pentothal sodium and pentobarbital sodium on pancreatic secretion induced by HCl in the intestine of dogs is negligible. The great difference in the pancreatic secretion between the acute and the chronic experiments might, therefore, be due to the operative trauma which is unavoidable in acute experiments. Another observation was made to determine the effect of atropine on pancreatic secretion induced by HCl in chronic fistula dogs. The result showed that atropine distinctly reduced the response of pancreas to the acid. The latent period was increased and the amount of pancreatic secretion was decreased as compared with the result obtained in normal chronic fistula dogs. Hence it is quite suggestive that there might exist a nervous component in the mechanism of pancreatic secretion induced by HCl in the small intestine. We wish to express our gratitude to Comrade for his valuable advice and to professors T. C. Shen and T. F. Liu for their encouragement throughout this work.

    本實驗比較急性實驗狗、慢性胰瘻狗和經過麻醉的慢性胰屢狗對於鹽酸注入小腸所引起的胰液分泌量和潛伏期,結果證明: (1)在急性實驗情况下,狗胰腺對鹽酸刺激小腸所引起的胰液分泌量遠較在慢性實驗時為少,且潛伏期較長。 (2)巴比妥類麻醉劑:硫賁妥鈉(sodium pentothal)和戊烷巴比妥鈉(sodiumpentobarbital)對鹽酸所引起的胰液分泌量及潛伏期影響極微。 (3)在急性實驗情况下,由鹽酸所引起的胰液分泌量的減少和潛伏期的加長,似乎不是由於巴比妥類麻醉劑的作用,而可能是由於手術創傷的影響。 (4)注射阿托平後,胰腺對於鹽酸刺激小腸所引起的反應顯著减小,故推测在鹽酸引起胰液分泌的機制中可能有神經反射作用的參與。本工作在进行過程中,承蘇聯專家同志親切地給予指導,并承沈(?)淇、劉曾復二教授关懷和支持,(?)此誌謝。

    A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow...

    A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow powder, m.p. 164° (dec.) and picrate (Ⅲe), yellow needles, m.p. 183-184° (dec.) by treating its solution in formic acid with a 50% formic acid solution of sodium chloride, sodium bromide or potassium iodide or with an alcoholic solution of picric acid respectively. The structural formula (Ⅲ) of the new iodonium compounds was derived by means of potassium permanganate oxidation of the bisulfate (Ⅲa) to 2-iodo-4-nitrobenzoic acid, and by thermal decomposition of the iodide (Ⅲd) to 2,2'-diiodo-4, 4'-dinitro-diphenyl-methane (Ⅵ) (60% yield), m.p. 158-159°, the structure of which was shown by analysis and by comparison with what is known about the behavior of other iodonium iodides, e.g., 4,4'-dicarboethoxy-diphenylene iodonium iodide (Ⅷ), which decomposes on heating yielding 2,2'-diiodo-4,4'-dicarboethoxydiphenyl (Ⅸ). Compound (Ⅵ) could be reduced with tin and hydrochloric acid to a diamino compound (Ⅶ).The iodonium salt (Ⅲa) possessed the interesting property that when it was treated with dilute sodium hydroxide solution at room temperature with the addition of ethyl acetate or pyridine, a beautiful bluish-green color gradually developed in the organic layer. When it was heated with dry pyridine, the same color developed. The colored ethyl acetate solution changed to brownish yellow on acidification with dilute sulfuric acid and regained its bluish-green color when the acidified solution was made alkaline.Under similar conditions as described above, reaction between diphenylmethane and iodosyl sulfate gave a grayish substance, m.p. 210-212°, which was insoluble in common solvents. This substance was possibly a polymeric compound of formula (Ⅺ).

    1.4,4'-二硝基二苯甲烷(Ⅰ)與硫酸亚碘醯(Ⅱ)作用,生成一种新型的含碘杂環化合物(Ⅲ_a)。 2.化合物Ⅲ_a與氯化鈉、溴化鈉、碘化鉀或苦味酸作用,置换成为相應的鹵化物(Ⅲ_(b-d))或苦味酸盐(Ⅲ_e)。 3.用鹼性高錳酸鉀溶液氧化化合物Ⅲ_a得2-碘代-4-硝基苯甲酸。 4.碘化物(Ⅲ_d)在它的熔點温度进行熱解,得2,2'-二碘代-4,4'-二硝基二苯甲烷。继还原,得相應的二氨基化合物。二者均为新化合物。 5.化合物Ⅲ_a用氢氧化鈉溶液处理,得到蓝绿色物質,溶於乙酸乙酯、丙酮、吡啶中成鲜明的蓝绿色溶液。乙酸乙酯溶液酸化後变成黄棕色,再鹼化復现蓝绿色。将化合物Ⅲ_a在无水吡啶中加熱,亦呈现蓝绿色。 6.在类似的条件下,二苯甲烷與硫酸亚碘醯起作用。

     
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