查询词典 nickel

Then the composition and particle size distribution of Ni catalysts at different sulfuration time were analyzed,and the coke-restraining activity of the catalyst was also studied.The results show that the structure of nickel sulfide catalyst changed with different sulfuration time,and the coke-restraining activity of the cata...

结果表明，硫化时间的增长，生成的硫化态催化剂晶形发生了相应的变化，随着硫化时间的延长和催化剂质量分数的提高，催化剂的抑制生焦活性提高；当硫化时间超过3h，催化剂质量分数大于2000μg/g时，催化剂抑焦活性的变化趋于平稳。

The separation mechanism of nickel and iron by sulphide precipitation and process influence conditions were investigated.

研究了硫化沉淀分离镍与铁的分离机理及工艺影响条件。

In the nature, the nickel mainly exists by sulphide ore and oxide ore.

在自然界中，镍主要以硫化镍矿和氧化镍矿状态存在。

Investigations of properties of foamed metals The structures of the framework and the framework superficies of foamed nickel, copper and silver are determined by scanning electron microscope and other means.

发泡金属的性质研究用扫描电子显微镜等分析手段测定发泡镍、铜、银的骨架结构及骨架表面结构。

The harm of the sand tailings and the present conditions of its control in Jinchuan Copper-Nickel Mine were analyzed.

分析了金川铜镍矿山尾矿砂的危害和治理现状，从循环经济的思想出发，在试验研究的基础上提出了金川铜镍矿山尾矿砂资源化利用的循环经济模式。

A one-cent coin is a penny, a five-cent coin is a nickel, a ten-cent coin is a dime, and a 25-cent coin is a quarter.

也有1美元和50美分的硬币，但很少见。

The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.

研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应。

The technology of sulfur recovering by the means of tetrachloroethylene mixing with water has its own special characteristics and advantages ,comparing with other methods in the field of comprehensive utilizing nickel anode sludge.

在镍阳极泥的综合利用上，采用四氯乙烯混水法回收元素硫，有其独有的工艺特点和优势。

But the nickel disappearance is one more clue about how the planet went from suffocating to a place where terrestrial tetrapod could take a deep breath.

但是镍的消失是又一个线索，揭示地球如何从一个令人窒息的星球变成一个陆生四足生物可以深吸一口气的地方。

But the nickel disappearance is one more clue about how the planet went from suffocating to a place where a terrestrial tetrapod could take a deep breath.

但是对于如何解释我们的地球从一个令人窒息的环境转变为一个让陆地四足动物可以自由呼吸的地方，镍的消失又提供了一个线索。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。