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     Synthesis and Properties of 4,4 ′-Dinitrostilbene-2,2 ′-Di-sulfonic acid (salt)
     4,4′-二硝基芪-2,2′-二磺酸(钠)性质及合成方法的研究
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     The composition of SW-1 was optimized by orthogonal test as follow:pH regulator 0.4%(wt),dispersant 3.0%(wt),suspending agent 0.6%(wt),accessory ingredient 0.4%(wt),and montmorillonite 3.0%(wt).
     根据正交试验,确定了调剖剂SW-1的最佳配方:w(分散剂)=3.0%,w(pH值调节剂)=0.4%,w(助剂)=0.4%,w(悬浮剂)=0.6%,w(钠土)=3.0%。
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     The results showed that in this experiment 250 mL-Erlenmeyer flask with 25 g discarded beer yeast and 20 mL reaction liquid included 60 mmol/L CMP, 150 mmol/L glucose, 250 mmol/L phosphate buffer(sodium), 8 mmol/L magnesium chloride, pH6.0 was used. Over 80%CMP was transformed to CTP after 2 hours incubation at 35℃ through appropriate ATP and tween80 added.
     结果表明,在25g酵母量中加入20mL底物溶液,其中包括CMP60mmol/L、葡萄糖150mmol/L、磷酸盐缓冲液(钠盐)250mmol/L、氯化镁8mmol/L、pH为6.0,温度35℃、反应时间2.0h,在此反应体系下,通过添加适量ATP、吐温,CTP的转化率可维持在80%以上。
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     The calibration curves were linear in the range of 13~64 μg·mL -1 for lidocaine hydrochloride,45~38 μg·mL -1 for dexamethason,269~1 614 μg·mL -1 for o-carbamoylphenoxyacetic acid(sodium salt),402~2 077 μg·mL -1 for phenylbutazone sodium respectively.
     盐酸利多卡因在 13~ 6 4μg·mL- 1 、地塞米松在 4 5~ 38μg·mL- 1 、卡巴芬乙酸 (钠盐 )在 2 6 9~ 16 14μg·mL- 1 、保泰松钠在 40 2~ 2 0 77μg·mL- 1 范围内 ,峰面积与其浓度呈良好的线性关系 ;
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     Synthesis of 4, 4' - Dinitrostilbene - 2,2' - disulfonic Acid (Sodium Salt)By Using Solvent Method
     有机溶剂法合成4,4'-二硝基芪-2,2'-二磺酸(钠)
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     sodium citrate;
     柠檬酸;
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     Sulbenicillin Sodium
     磺苄青霉素
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     Carbenoxolone Sodium (Biogastrone,Duogastrone, Castrausil)
     生胃酮(甘珀酸)
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Transfersomal formulation with optimal concentration of Soya phosphatidylcholine (SPC) and sodium deoxycholate (85:15 w/w) showed entrapment efficiency of 39.8±0.032 and deformability index of 16.4.
      
Ameltolide shares with phenytoin and carbamazepine a common mode of action involving interaction with central voltage-dependent sodium channels.
      
Aqueous extract of the medicinal plant Mentha crispa alters the biodistribution of the radiopharmaceutical sodium pertechnetate
      
The growth rate of the mordenite crystal along individual axes increases first and then decreases with increasing concentration of sodium hydroxide.
      
Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant
      
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The X ray diffraction of liquid potassium has been studied with MoKa radiation using the double filter differential method. The result of analyzing the intensity curve shows that the density fluctuation curve of liquid potassium resembles very much that of liquid sodium. Both curves have two maxima at r(2W/eN)-1/3 = 0.93 and 1.65 and two

著者应用鉏之Ka射线以定液态钾之构造,得液态钾之构造与液态者同於是知凡结晶构造同属一类之单原子物质液态构造亦同属一类而液钾态及之构造皆可称曰同属含心立方类(Body-centered cubic type),蓋此类之构造与固态之含心立方晶系可证明具有密切关系也

An interference pattern of two systems of fringes has been obtained by vising two radiations in a Hilger prism interferometer A system of white bands with equal spacing which are always parallel to the refracting, edge of the prisin is the result of the intersection of the two systems of fringes. The white bauds travel as one of the reflecting mirror in the interferometer makes a parallel displacement. Let d be the displacement of mirror when the white bauds travel one spacing,Two yellow doublets in sodium and...

An interference pattern of two systems of fringes has been obtained by vising two radiations in a Hilger prism interferometer A system of white bands with equal spacing which are always parallel to the refracting, edge of the prisin is the result of the intersection of the two systems of fringes. The white bauds travel as one of the reflecting mirror in the interferometer makes a parallel displacement. Let d be the displacement of mirror when the white bauds travel one spacing,Two yellow doublets in sodium and mercury lamps were used. The values found forA comparison of this method with the visibility corve by Michelson interfero-ineter has been discussed.

在Hilger棱镜干涉仪中,用两辐射线,则在一干涉图形中可得两组不同方向之干涉纹;因两组不同方向之干涉纹之相交,而得一组平行之白色条纹。此种条纹恒与棱镜折射边相平行,而条纹间之间隔为相等。当干涉仪之一反射镜作前後平行移动时,白色条纹则向左或右移动。令白色条纹移过一间隔时,反射镜移动之距离为d.则得 1/(λ_2)-1/(λ_1)=1/2d. 光及汞光灯中之黄色双线普用于此实验中。1/(λ_2)-1/(λ_1)之值各求得为17.22厘米~(-1)及63.29厘米~(-1)。此实验与麦凯尔逊干涉仪之明视曲线互见短长,本文曾讨论及之。

1.Homo-ionic colloidal clays (Mg-clay>H-clay>Be-clay>NH4-clay>K-clay>Na-clay. 3.The collcidal clays from yellow earth having lower SiO_2/R_2O_3 ratios fix more phosphate than that from purple brown...

1.Homo-ionic colloidal clays (Mg-clay>H-clay>Be-clay>NH4-clay>K-clay>Na-clay. 3.The collcidal clays from yellow earth having lower SiO_2/R_2O_3 ratios fix more phosphate than that from purple brown soil. 4.The phosphate fixation power of H-clay is markedly reduced after the removal of free irn and aluminum oxides. 5.In Ca-clay,the fixed phosphate was unstable.The association of phosphate with the exchangeable calcium is easily liberated by a very dilute acid solution.

土壤中磷酸固定作用每受外界环境之影响而有很大差异,如粘土矿物的种类,土壤反应,代换性盐基等,黏土矿物与土壤反应对于磷酸固定前,人已有较详细之报告,本文特重视代换性盐基之种类对于磷酸固定之关系。本试验以紫色土与黄壤为代表,均取于北碚。紫色土系发育于白垩纪自流井层紫色页岩,属中性而无石灰性反应,pH=7.0,黄壤系自侏罗纪灰色砂岩风化者,心土微红,pH=4.5—5.0,为避免过高之有机质,均采取心土,按照 Stoke 氏定律提取5微米(micron)直径之黏土粒,晒干后,分别以 N NaCl,N KGl,N NH_4Cl,N MgCl_2,N BaCl_2及 pH=3 HCl 处理,然后再以90%酒精洗涤至无氯为止,总之以不变更胶体之构造为原则,经处理之黏土,先分析其中之代换性盐基以及盐基代换总量,然后再测定其磷酸固定量,在酸性反应如 H~-黏土,其磷酸固定之主要因子为水化铁及水化铝,故再以 pH=2之盐酸淋洗,除去其中游离铁铝,再测定其磷酸固定量以资比较。按分析结果,黄壤胶体(<2 micron)中之(SiO_2)/(R_2O_3)为2.19,紫色土为2.56,前者盐基代换总量每百克黏土粒(<5 micron)...

土壤中磷酸固定作用每受外界环境之影响而有很大差异,如粘土矿物的种类,土壤反应,代换性盐基等,黏土矿物与土壤反应对于磷酸固定前,人已有较详细之报告,本文特重视代换性盐基之种类对于磷酸固定之关系。本试验以紫色土与黄壤为代表,均取于北碚。紫色土系发育于白垩纪自流井层紫色页岩,属中性而无石灰性反应,pH=7.0,黄壤系自侏罗纪灰色砂岩风化者,心土微红,pH=4.5—5.0,为避免过高之有机质,均采取心土,按照 Stoke 氏定律提取5微米(micron)直径之黏土粒,晒干后,分别以 N NaCl,N KGl,N NH_4Cl,N MgCl_2,N BaCl_2及 pH=3 HCl 处理,然后再以90%酒精洗涤至无氯为止,总之以不变更胶体之构造为原则,经处理之黏土,先分析其中之代换性盐基以及盐基代换总量,然后再测定其磷酸固定量,在酸性反应如 H~-黏土,其磷酸固定之主要因子为水化铁及水化铝,故再以 pH=2之盐酸淋洗,除去其中游离铁铝,再测定其磷酸固定量以资比较。按分析结果,黄壤胶体(<2 micron)中之(SiO_2)/(R_2O_3)为2.19,紫色土为2.56,前者盐基代换总量每百克黏土粒(<5 micron)为18m.e.后背为30m.e.,兹将试验所得结果归纳如次: 1.磷酸固定量每因土壤胶体之不同而有差异,由黄壤所提取之黏土其磷酸固定量亦较紫色土为高。 2.土壤之磷酸固定量,非特因土壤胶体之不同而有差异,即或同一黏土,其磷酸固定量亦因其代换性盐基之不同而有差异,概言之,黏土之磷酸固定量为最小,钾黏土次之钡、铵黏土又次之,而以钙黏土为最大,其磷酸固定次序为: Ca-黏土>Mg-黏土>H-黏土>B(?)-黏土>NH_4-黏土>K-黏土>Na 黏土 3.各种不同代换性盐基的粘土,加磷酸溶液后,其反应亦各不相同,H~-黏土之 pH 值为3.2—4.5,因其酸度较高,溶液中之游离铁与游离铝含量较多,是故磷酸固定量亦较高,如以淡盐酸(pH=2)洗涤,除去其中游离铁铝后,其磷酸固定量则大为减少,Na~-黏土与 K~-粘土之溶液中,因 OH 离子较多(pH=8.0—8.6),而磷酸与磷酸钾又为水溶性,故磷酸固定量为最少。Ca~-粘土与 Mg-粘土其反应属中性至微碱性,pH=7.5—8.0,因溶液中 Ca,Mg 离子浓度较高,磷酸则为此 Ca,Mg离子所固定,故在中性土壤中,磷酸固定以 Ca 为其主要在子,酸性土壤则以水化铁为其主要因子。 4.钙粘土所固定之磷酸,如以0.002 N H_2SO_4提取,其所固定之磷酸复可溶解,是项固定之磷酸与 Heck 所称「暂时固定磷酸」颇为相似。

 
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