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copper and aluminium
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  “copper and aluminium”译为未确定词的双语例句
     The results indicate that the favorable conditions are the ratio of 1 to 100 of solid to liquid, the additions of 0.5 mol sulphuric acid and 0.2 mol hydrogen peroxide and the temperature of 70 ℃ and leaching time of 4 hrs. The best dissolution rates of copper and aluminium were 100% and 97.25%, respectively.
     试验结果表明:固液比为1∶100,浸出时间为4h,双氧水用量为0.2mol,硫酸用量为0.5mol,温度为70℃,铜的浸出率可达到100%,铝的浸出率可达到97.5%,实现了资源的再生利用。
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     The Production Capacity and Tendency of Structure Adjustment as Well as Risk Control of Copper and Aluminium Industries
     铜、铝工业的产能状况、结构调整趋势及风险控制
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     The Study of Corrosion and Inhibitor of Sodium Hypochlorite Solution on Carbon Steel, Copper and Aluminium
     次氯酸钠水溶液对碳钢、铜、铝的腐蚀性及缓蚀剂的研究
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     METHODSTo determine the R value and classification of 11 sorts of commonly used disinfectants for stainless steel, carbon steel, copper and aluminium by citing GB10124 88 method. Observing metal piece actual corrosion estimated that R value less than 0.01 mm/a under metal electron microscope.
     方法 引用 GB10 12 4- 88方法对目前常用的 11种消毒液进行不锈钢、碳钢、铜和铝的 R值测定与分级 ,将 R<0 .0 1mm/ a的金属片在金相电子显微镜下实际腐蚀程度 ;
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     Direct Determination of Micro Amounts of Antimony in Pure Copper and Aluminium Bronze by HGA-AAS
     石墨炉原子吸收光谱法直接测定纯铜及铝青铜中微量锑
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  相似匹配句对
     COPPER
     铜
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     The CCDTL aluminium and copper model are manufactured.
     我们利用铝模及铜模,对CCDTL结构进行研究。
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     Standardization for copper clad aluminium wire
     铜包铝线标准化
短句来源
     Spectrophotometric Determination of Trace Copper in Aluminium Power
     铝粉中微量铜的分光光度法测定
短句来源
     EFFECT OF ALLOY ELEMENTS ON ANTIFRICTIONAL ALUMINIUM-COPPER
     合金元素对Al-Cu系减摩合金性能的影响
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  copper and aluminium
Considerable effort has been devoted to process development and optimization for such metals as copper and aluminium.
      
Vickers hardness tests were conducted on samples of copper and aluminium in a cold rolled or annealed condition to determine the apparent hardness variation in the load range 15 g to 20 kg.
      
A friction effect in low-load hardness testing of copper and aluminium
      
The alumina discs were confined in copper and aluminium capsules, which provided solely compressive and compressive plus tensile pulses in the ceramic, respectively.
      
Special features of the formation of the diffusion bonded joints between copper and aluminium
      
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Jn general, the radiation pyrometer widely used for temperature measurement can only determine the brilliancy or radiation temperature of the object to be measured. In order to eliminate the influence of emissivity on thermal measurement by use of radiation pyrometer hence to determine the actual temperature, to find out the surface emissivity of the object to be measured is indispensable. But the surface emissivity is difficult to be determined because it is related to so much factors especially the complicate...

Jn general, the radiation pyrometer widely used for temperature measurement can only determine the brilliancy or radiation temperature of the object to be measured. In order to eliminate the influence of emissivity on thermal measurement by use of radiation pyrometer hence to determine the actual temperature, to find out the surface emissivity of the object to be measured is indispensable. But the surface emissivity is difficult to be determined because it is related to so much factors especially the complicate surface conditions of various objects. For this reason, some earlier works have been done in different ways and the authors have also developed a kind of pyrometer with which a reflector is preceded. This paper offers a theoretical equation to calculate the effective emissivity of a surrounded surface for determining the actual temperature using the thermal measurement device we developed.Summary, Effective emissivity is defined as aratio of effective surface emission to the effective emission of a surface at the same temperature as its emissivity is equal to 1. The equation expressing effective emissivity of a surrounded surface has been derived aswhere p is the reflectivity of the inner surface of a hemispherical reflector which covers over the surrounded surface and forms an enclosed chamber together with the surrounded surface, e the emissivity of surrounded surface and F1 and F2 the surface areas respectively. This fundamental equation is provided not only for this kind of pyrometer but also for the infrared thermal measurement. Four cases of application approaching to different limits are discussed. If the effective emissivity of the inner surface of hemispherical reflector appraches to 1, the energy emitted through an aperture located at the top of hemisphere is nearly enough the heat emission of a black body at a temperature as the same as that of surrounded surface. Thus, the actual temperature of surrounded surface can be measured by setting up a thermoplie or the other detector on the top aperture of reflector. This is just the basic principle of the radiation pyrometer preceded with a reflector we developed (see Fig.3). An apparatus indication equation in terms of voltage output and its sensitivity expresion are derived, the latter is given as a first derivative of volt output with respect to temperature and shows that the sensitivity greatly increases with the temperature raising. Calculation of the raising of surface temperature measured due to the preceded reflector has been discussed and the plate specimens made of cast iron and stainless steel are measured for instance, it is shown that calculated values are basically in agreement with those measured. Finally, the systematic error of this kind of pyrometer has been analyzed taking account of different influencing factors on the effective emissivity, the result also shows a good con-formability of εeff between the values using the equation as above and those measured. Fig.1 Enclosed hemispherical chamber formed by the surface measured with the preceded reflectorFig.2 The e -εeff curves as ρ = 0.97 and different F1/F2 ratios Fig.3 Schematic of radiation pyrometer preceded with a reflector1-thermopile; 2-zero adjustment; 3-aperture; 4-metal plate to be measured;5-lens; 6-hemisphere with inner surface goldplated. Fig.4 Calculation representation of temperature raising Fig.5 Temperature raising values calculated and compared with thosemeasuredFig.6 The gap 6 between reflector and surface measured Tab.1 Systematic errors calculated under various measuring conditions based on formula(21)Tab.2 Comparison of mv values of oxidized cast iron, copper and aluminium plates indicated by blackbody furnace with those measured, at 400, 500, 600 and 700℃.Fig. 3

导出了奠定前置反射器辐射温度计理论基础的被围表面有效发射率新公式。此式也是红外辐射测温技术的基本公式之一。被测表面在反射器作用下会引起表面温升现象,由此根据所拟定的边界条件和初始条件解一维热传导方程,求得被测表面温升的理论公式。上述两式都与实验结果相吻合。为深入了解该类型仪表的测温原理,对该类型辐射测温仪表的系统误差进行了分析,各项有效发射率增量的累计与理论有效发射率之和(实际有效发射率)同实际测量误差相比,吻合较好。此种辐射温度计在1000℃时,误差在±10℃以内。

Hard membrane rust-preventive solution "Chang-4" is Composed of tertiary-butyl phenol-formaldlyde resin as a basic membrane forming substance and some other resins of suitablequantities. When it is coated. the hard membrane gives good handle and stripping propertieswhich is not only lustrous but also clear. Through sifting and comparison in many tests, suitable quantities of corrosion-inhibitorsand some other additives are also added to the product. Thus its protetive properties are far-ther perfected. In atmospheric...

Hard membrane rust-preventive solution "Chang-4" is Composed of tertiary-butyl phenol-formaldlyde resin as a basic membrane forming substance and some other resins of suitablequantities. When it is coated. the hard membrane gives good handle and stripping propertieswhich is not only lustrous but also clear. Through sifting and comparison in many tests, suitable quantities of corrosion-inhibitorsand some other additives are also added to the product. Thus its protetive properties are far-ther perfected. In atmospheric conditi ons this product gives good rust-preventive and salt spray-resistan-ce properties to many metals such as castiron, steed, brass, copper and aluminium. In other co-rrosive media its properties are definite too. Experiments show that it is a good material both for protective and decorative purposes.

昌-4硬膜防锈液是以叔丁基酚甲醛树脂为成膜物质,再加入适量的其它树脂而制成。因此结膜后的硬膜其手感性、可剥性良好,膜光亮透明。本品对多种金属如铸铁、钢、黄铜、紫铜、铝在大气条件下都有较好的防锈性和抗盐雾性。在其它腐蚀介质中也有一定的防护作用。实验表明:它是一种较好的防护、装饰两用材料。

The corrosion of an aqueous solution of sodium hypochlorite on carbon steel,copper and aluminium and the corrosion inhibition of sodium gluconate.Sodium salicylate and polyhydric alcohol phosphate ester (PC-602) inhibitors and their influence on the decom- position of sodium hbypochlorite have been studied by the weight loss method. With 250ppm sodium hypochlorite solution containing 150~250 ppm PC-602, the inhibition efficiency may reach 92%~94%.For PC-602,there are no influence on the stability of sodium...

The corrosion of an aqueous solution of sodium hypochlorite on carbon steel,copper and aluminium and the corrosion inhibition of sodium gluconate.Sodium salicylate and polyhydric alcohol phosphate ester (PC-602) inhibitors and their influence on the decom- position of sodium hbypochlorite have been studied by the weight loss method. With 250ppm sodium hypochlorite solution containing 150~250 ppm PC-602, the inhibition efficiency may reach 92%~94%.For PC-602,there are no influence on the stability of sodium salicylate can be accelerate the rate of decomposition of sodium hypochlorite.

用挂片失重法测定了次氯酸钠水溶液对碳钢、铜和铝的腐蚀性,葡萄糖酸钠、水杨酸钠和多元醇磷酸酯类缓蚀剂(PC-602)的缓蚀效果及其对次氯酸钠分解率的影响。含有效氯浓度250ppm的次氯酸钠溶液,加入150~250ppm PC-602,对碳钢的缓蚀率可达92~94%。PC-602对次氯酸钠的稳定性无影响,葡萄糖酸钠和水杨酸钠复配具有协同增效作用.但可加速次氯酸钠的分解速率。次氯酸钠溶液对铜和铝两种金属的腐蚀性较小。

 
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