Deutsch-Chinesische Enzyklopädie, 德汉百科

       
German — Chinese
Catalog Life and Style

伊夫圣罗兰

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Die Zalando SE mit Sitz in Berlin ist ein börsennotierter deutscher Online-Versandhändler für Schuhe, Kleidung und Kosmetik. Das Unternehmen wurde 2008 von David Schneider und Robert Gentz gegründet und hat mehr als 51 Millionen aktive Kunden in 25 europäischen Märkten.
 
 
 
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真力时
1865

 

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齐柏林
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中兴通讯股份有限公司/Zhong Xing Telecommunication Equipment Company Limited
 
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锆石
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锆石[gào shí](英文名称:zircon)是一种硅酸盐矿物,它是提炼金属锆的主要矿石,含有Hf、Th、U、TR等混入物。锆石广泛存在于酸性火成岩,也产于变质岩和其他沉积物中。锆石的化学性质很稳定,所以在河流的砂砾中也可以见到宝石级的锆石。锆石有很多种,不同的锆石会有不同的颜色,如黑、白、橙、褐、绿或无色透明等等。经过切割后的宝石级锆石很像是钻石。锆石过去还被叫作锆英石
中文名
锆石
英文名
zircon
别    称
锆英石
化学式
ZrSiO₄
密    度
3.90~4.73 g/cm³
外    观
透明至半透明,无色、紫红、金黄色、淡黄色
应    用
定年,定温
硬    度
7.5-8
比    重
4.4-4.8
晶体结构
四方晶系
光    泽
玻璃至金刚光泽,断口油脂光泽
 
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双立人
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