元素碳的 elemental carbon(14)   elemental carbon      CARBYNE──A NEW ALLOTROPE OF ELEMENTAL CARBON      卡宾碳──一种新的元素碳的同素异形体 短句来源      The determination and study of elemental carbon in soil      土壤中元素碳的测定与研究 短句来源      Characterization of indoor/outdoor organic and elemental carbon in PM_ (2.5) during summer in Guangzhou city      广州市夏季室内外PM_(2.5)中有机碳、元素碳的分布特征 短句来源      Determination of organic carbon and elemental carbon in atmospheric aerosol samples      大气颗粒物样品中有机碳和元素碳的测定 短句来源      Concentration level and seasonal variation of organic carbon and elemental carbon in Beijing aerosols      北京大气颗粒物中有机碳和元素碳的浓度水平和季节变化 短句来源 更多          “元素碳的”译为未确定词的双语例句      Direct determination of element carbon in the atmospheric aerosols by CHN elemental analyzer      大气颗粒物中元素碳的直接测定 短句来源      Continuous observation of carbonaceous aerosols in PM_(10) in Beijing in winter      北京冬季PM_(10)中有机碳与元素碳的连续观测及来源分析 短句来源      Diagnostic ratios of Benzo(a)anthracene to Chrysene, Fluoranthene to Pyrene,and Pyrene to Benzo(a)pyrene showed that a significant fraction of PAHs was from traffic-sources.      根据典型污染来源中特征化合物比值如苯并(a)蒽/、荧蒽/芘和芘/苯并(a)芘及其有机碳/元素碳的值,推断厦门市PM10中的PAHs主要来源于汽车尾气的排放. 短句来源      Size Distribution of Polycyclic Aromatic Hydrocarbons in Aerosol of Guangzhou and Characteristics of EC and OC in Aerosol of Guangzhou and HongKong      广州市大气颗粒物中多环芳烃粒径分布和穗港大气颗粒中有机碳/元素碳的分布特征研究 短句来源      The average of standard deviation in measurement of EC is 0.34%,and OC is 0.35%. by using laboratory standard samples of mixed two carbon species the accuracy of the method was (evaluated.) This method was compared with thermal_optical method based on Sunset instrument in the inter_laboratory comparison activities.      有机碳、元素碳的测量标准偏差的平均值分别为 0 35 %、0 34% ,提高了元素碳的测量精度 ,同时避免了误差传递 ,解决了差减法测定元素碳时出现负值的情况。 短句来源 更多          相似匹配句对      The determination and study of elemental carbon in soil      土壤中元素碳的测定与研究 短句来源      Direct determination of element carbon in the atmospheric aerosols by CHN elemental analyzer      大气颗粒物中元素碳的直接测定 短句来源      Nucleosynthesis of Elements      元素核合成 短句来源      Elementoorganic Chemistry      元素有机化学 短句来源      Carbon cycling      碳的循环 短句来源 查询“元素碳的”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   elemental carbon Carbon-containing substances and elemental carbon can be effectively separated from sulfur samples as CO2 and COS. 例句来源       Campaigns were conducted to measure Organic Carbon (OC) and Elemental Carbon (EC) in PM2.5 during winter and summer 2003 in Beijing. 例句来源       From elemental carbon analysis, the maximum number of bonded phenyl surface groups per gram was calculated to be 0.467×1021 (Oginal silica plate: Merck Art. 例句来源       From elemental carbon analysis data, the maximum number of bonded 3-glycidoxypropyl surface groups per gram was calculated to be 0.417×1021. 例句来源       The range of210Po α-particles has been measured in pure elemental carbon. 例句来源       更多                    The changes of carbon and hydrogen composition of petroleum fractions and petroleum products in the process of decarbonization and hydrogenation are reviewed and their efficient utilization examined. For obtaining maximum yield of light products, an ingenious combination of hydrogenation and decarbonization is proposed for the rational adjustment of carbon and hydrogen composition at minimum cost.             本文从石油中主要的两种元素——碳和氢的组成出发,研究其在脱碳和加氢等典型炼制过程中的变化规律,分析了采用不同过程生产所需要的石油产品时碳和氢的有效利用程度。为了在重质油品轻质化过程中取得更高的轻质油收率,指出了脱碳和加氢过程互相结合,发挥各自特点,以较小的代价实现氢碳比值合理调整的技术途径。 文摘来源          In the course of producing powered tantalum,it is neccessary to obtain pu-re sodium used as reductant,therfore we designed and took part in assemblingasodium purifying device.The methods of sodium purification include removingof mineral oil,filtrating,cold-trapping and so on.After purification,oxygenin sodium was reduced to less than 23 ppm;carbon and silicon were reduced to12.7 ppm and 2.8 ppm respectively.The output of pure sodium produced by thedevice is up to 120 kg a day.The resistance level meter is u...             本文介绍了一套用于生产钽粉的金属钠净化装置,包括方法原理及设备的主要结构。经过除油、过滤、冷阱净化、覆盖气净化等手段,使净化后的钠含氧量小于23ppm,元素碳和硅的含量分别为 12.7ppm 和 2.8ppm。该装置日产净化钠120公斤,并可提供3—24公斤的准确计量钠。本装置已投产正常使用一年。采用这种净化钠的方法使钽粉质量、节省电能、操作条件等方面均有明显改善。 文摘来源          The elemental composition and chemical states of the surface film of silver-electroplated deposits with different treatment and aging time have been investigated by means of XPS and AES. The results showed: ( 1 ) Fresh deposit U0, stored indoors in a transparent desiccator for 5 days, was composed of the elements silver, oxygen, sulphur, chlorine and the matrix metal copper in addition to contaminating elements carbon, potassium and nitrogen; the content of elemental silver of a series of untarished deposit...             用电子能谱(XPS和AES)研究了不同处理与历程的镀银层表面膜的元素组成和化学态,结果表明:(1)于干燥器内存放5天后的新鲜镀层(U_O)由元素银、氧、硫、氯和基底金属铜和沾污元素碳、钾和氮组成,随着存放时间增加,一系列未变色镀层(U_O与U_1)的元素银含量有规律地减少而氧几乎线性增加;(2)用NaCl溶液处理的镀层(U_1)的元素银、氧的分布在AES线扫描中一致,而用 Na_2S处理的镀层(U_2)的元素银、硫共存区部分取代了银、氧共存区,硫银原子比按下列顺序递减,即:室内干燥器内500天后的镀层(U_3)及室内干燥器内含1%H_2S的大气中24小时后的镀层(T_s)大于暴露室外大气中日光下24小时后的镀层(T_1);(3)由两维俄歇参数图发现在T_1已上面有19%的银为Ag_2O,而U_o上面仅有少量;(4)新鲜镀层用某些还原剂或络合剂处理后的防变色能力明显增加. 依据上述结果讨论了变色机理和防银变色原则. 文摘来源   << 更多相关文摘         相关查询: 元素） 元素 （元素） 碳的 流体元素 b元素 掩蔽元素 固定元素 裂变元素 有理元素 协方差元素 元素靶  对查询结果不满意

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