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copper-ion
相关语句
  铜离子
     The effect of electrolytic temperature,current density and concentration of copper-ion on the surface quality of copper on cathode was investigated.
     研究电解温度,电流密度,铜离子浓度等对阴极铜质量的影响,通过目测和金相显微观察的方法对影响效果进行评价.
短句来源
     The optimum parameters for laboratory test were determined as follows: electrolytic temperature is 50 ℃,current density is 200 A/m2,and concentration of copper-ion is 35~40 g/L.
     电流密度为200 A/m2,铜离子浓度为35-40 g/L.
短句来源
     There is little copper-ion in the oxygen while the 0. 5/dL copper sulfate solution were used continuously for 9 days. The oxygen humidified by copper sulfate solution has no peculiar smell.
     用0.5%硫酸铜溶液连续9天吹氧所带出的铜离子极少,经硫酸铜溶液湿化的氧气,对病人安全无害,无异味、无刺激、无其他不良感觉。
短句来源
  “copper-ion”译为未确定词的双语例句
     In acidic solution copper-ion (Ⅱ) is found to react with both dithizone and cetyl trimethylammonium bromide (CTMAB) to change this solution from green to yellow.
     在酸性溶液中,铜(Cu2+)与双硫腙和CTMAB反应,显色液由绿色变黄色,该显色反应灵敏度和选择性较高。
短句来源
  相似匹配句对
     COPPER
     铜
短句来源
     ADSORPTION OF COPPER ION USING CHITOSAN
     壳聚糖对铜离子的吸附作用
短句来源
     The role of copper and iron ion in carcinogenesis
     铜、铁离子在癌形成中的作用
短句来源
     Copper in Sucrose was assayed by ion-selective electrode.
     采用离子选择电极法测定蔗糖中的铜的含量。
短句来源
     Determination of Copper in Sucrose by Ion-Selective electrode
     铜离子选择电极测定蔗糖中铜的含量
短句来源
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  copper-ion
Free copper-ion activity was monitored with an ion-specific electrode.
      
Some performance characteristics of a solid-state battery composed of Chevrel phase, a copper-ion conductor, and Prussian blue
      
Some performance characteristics of a solid-state battery composed of Chevrel phase, a copper-ion conductor, and Prussian blue
      
measurements using a solid, copper-ion conducting electrolyte resulted in copper activities of between 0.000 73 and 0.044 for intercalated bismuth telluride.
      
Copper-Ion Sensitization of the Luminescence of Tb3+ in a Solution of a Binuclear Complex
      
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Occurrence of sporadic diseased plant centers during or after the bloomingperiod is considered as reliable indication of the current year's forthcomingoutbreak of late blight in a potato farm. Incubation period of each secondary infection being about 4 days,is ratherconstant during the blight epiphytotic season under Chahar conditions.The timeinterval between the appearance of initial diseased plant centers to final totalblight in a potato field varies greatly,however,not only from locality to localitywith different...

Occurrence of sporadic diseased plant centers during or after the bloomingperiod is considered as reliable indication of the current year's forthcomingoutbreak of late blight in a potato farm. Incubation period of each secondary infection being about 4 days,is ratherconstant during the blight epiphytotic season under Chahar conditions.The timeinterval between the appearance of initial diseased plant centers to final totalblight in a potato field varies greatly,however,not only from locality to localitywith different climatic conditions but also from field to field under similarclimatic conditions.Our data record a range of 18-42 days.Circumstantial eviden-ces indicate that this variation is due,on the one hand,to the rainfall whichinfluences the amounts of sporulation and the frequency of penetration of thepathogene,and on the other hand,to cultural and other factors that determinethe vigor and the rate of aging of the plant itself. Actual counts of lesions formed from secondary infection in the early periodof the spread of the disease in a potato field,reveal that their distribution bearsdirect relation with the direction of the prevailing wind.It is estimated that over90% of spores fall within a rectangle of 800 sq.m.around a diseased plantcenter along the loci of wind directions. On the basis of possible function of absorbed copper ions in the enhancementof plant resistance to late blight,field experiments have been conducted by using0.1 - 0.2% copper sulfate solutions as spray.Results show that spraying 2-3 timesat 7-10 days' interval,started soon after the appearance of diseased plant center,gives remarkable control of late blight and corresponding reduction of loss inyield.The copper sulfate spray,though less effective and stable in comparisonwith the bordeaux spray,has the advantage of being more economical and easierto apply.Further experiments with the pu:pose of modifying and improving themethod are in progress.

從馬鈴薯的開花期起可能在田间出现的晚疫病中心病株是本田當年病害即將大量發生的重要標誌。每次再侵染的潛育期,在張家口壩下地區的氣候下,大約4天。從病害的最初發現到全面枯死所經過的日期囚種種外界環境條件而有很大的差別,我們所觀察到的是18—42天。根據調查资料來推測,一方面,促進病菌孢子形成数量和侵入數量的雨水,另一方面,决定植株衰老速度的栽培條件,是這種差別的主要原因。田間再侵染所形成的病斑之分佈情况說明病菌孢子的傳播与風向有直接的關係。估計90%以土的孢子落在中心病株附近順着風向的800平方米的長方形面積上。根據馬鈴薯地上部吸收銅素以提高共抗病力的可能性,利用0.1—0.2%硫酸銅溶液作為噴射劑,在田间中心病株發現的時期開始每隔7—10天喷射共2—3次,可以顯著地降低晚疫病的為害,提高產量。這個方法在共效驗及穩定性上不如波爾多液,在藥劑費用的節省及施用的方便上則勝之?椒ǖ母牧己吞岣哒谶M一步研究中。

Ten benzene and substituted benzene diazonium fluoroborates were synthesized and obtained in colourless crystalline form. These compounds with Mohr's salt containing small amount of copper ion as impurity were used as redox initiator for the polymerizations of acrylonitrile in aqueous solution. Rates of polymerization initiated by different substituted benzene diazonium fluoroborates were studied. Results show that the rate of polymerization with different substituents could be correlated by the Hammett equation....

Ten benzene and substituted benzene diazonium fluoroborates were synthesized and obtained in colourless crystalline form. These compounds with Mohr's salt containing small amount of copper ion as impurity were used as redox initiator for the polymerizations of acrylonitrile in aqueous solution. Rates of polymerization initiated by different substituted benzene diazonium fluoroborates were studied. Results show that the rate of polymerization with different substituents could be correlated by the Hammett equation.

制备了十个纯净无色结晶的苯与取代苯重氮硼氟酸盐。研究了它们与含有少量铜离子的莫尔盐的氧化还原引发丙烯腈聚合的聚合反应速度,发现在相同条件下,取代基对聚合反应速度的影响符合 Hammett公式的关系。

On the basis of a proposed reaction mechanism for cementation of copper from its aqueous solution by means of metallic iron, the authors suggested a method employing fluidized iron pellets for recovering copper on an industrial scale.During the initial stage of the reaction, the rate of cementation conforms to a firstorder reaction controlled mainly by the concentration of copper ion at the iron-copper boundary. As cementation proceeds, however, metallic copper collects as a porous layer on the iron, and diffusion...

On the basis of a proposed reaction mechanism for cementation of copper from its aqueous solution by means of metallic iron, the authors suggested a method employing fluidized iron pellets for recovering copper on an industrial scale.During the initial stage of the reaction, the rate of cementation conforms to a firstorder reaction controlled mainly by the concentration of copper ion at the iron-copper boundary. As cementation proceeds, however, metallic copper collects as a porous layer on the iron, and diffusion of copper ion through this layer becomes the rate-controlling step of the process.Experiments on cementation of copper in a conical bed of fluidized iron pellets indicate that the copper layer formed peels off continuously as a result of the turbulent motion of the stream and mutual collision of the iron pellets, and is thus carried away by the flowing liquid from the reaction zone. The adoption of the conical bed insures complete fluidization of all the iron pellets having a wide particle-size range which results from their different residence time in the cementation reactor. The operation of a fluidized cementator is simple and is particularly adaptable to automation. When cast iron beads are used, 90% of the copper contained in a 0.1% Cu~(2+) solution is recovered at an operating temperature of 75℃ during an average solution residence time of 20 seconds.

提出了金属铁自水溶液中置換铜离子的反应模型,在此模型的基础上又提出了一个能够强化置换生产过程的液体流态化床法,并通过实验测得流态化置換的反应速率。实验数据表明:在反应初期,金属铁自溶液中置換铜离子的速度符合于铁铜界面由铜离子浓度控制的一级反应;随着反应时间的增长、表面铜层增厚,反应转变为铜离子通过铜层的扩散控制过程。采用锥形流态化床进行置換的实验表明:在铁珠表面生成的铜粉随着流态化床的激烈湍动能够连续剝落、被上升液流带出。部分反应后的铁珠具有不同的粒度,在锥形床中能够获得全部流态化。液体流态化床置换法的操作简单、便于自动化,以铸铁铁珠作为置換剂吋,在75℃温度下、于20秒钟的溶液平均停留时间內可将含Cu~(2+)0.1%溶液中铜的90%进行置換。

 
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