| 释义 |
yt·ter·bi·um AHD[ĭ-tûrʹbē-əm] D.J.[ɪˈtɜːbiːəm]K.K.[ɪˈtɝbiəm]n.Symbol Yb （名词）符号 Yb - A soft, bright, silvery rare-earth element occurring in two allotropic forms and used as an x-ray source for portable irradiation devices, in some laser materials, and in some special alloys. Atomic number 70; atomic weight 173.04; melting point 824°C; boiling point 1,196°C; specific gravity 6.972 or 6.54 (25°C) depending on allotropic form; valence 2, 3. See table at element 镱：一种柔软、明亮的银色稀土元素，存在于两种同素异形体中，被用作便携式的放射线治疗设备的X射线源，也用于一些激光物质和特殊合金中。原子序数70；原子量173.04；熔点824°C；沸点1,196°C；比重依两种同素形体6.972或6.54(25°C)；化合价2,3 参见 element
- After Ytterby , a town in Sweden 源自 依特白 ，瑞典一城镇
ytterʹbic AHD[-bĭk] （形容词） |