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Deutsch-Chinesische Enzyklopädie, 德汉百科
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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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- 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
双立人
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