单词 | thulium |
释义 | thulium['θju:liəm]n. 铥【化】 铥Tm【医】 铥(69号元素) thulium thu.li.um AHD: [th›“l¶-…m, thy›“-] D.J. [6Gu8li8*m, 6Gju8-]K.K. [6Guli*m, 6Gju-]n.Symbol Tm (名词)符号 Tm A bright, silvery rare-earth element obtained commercially from monazite, having an x-ray emitting isotope that is used in small portable medical x-ray units. Atomic number 69; atomic weight 168.934; melting point 1,545&9{=}C; boiling point 1,727&9{=}C; specific gravity 9.3; valence 2, 3.See table at element 铥:一种商业上可从独居石中提取的亮银色稀土元素。它有一种可以释放X射线的同位素,用于小型便携式医疗X射线设备。原子数69;原子量168.934;熔点1,545&9{=}C;沸点1,727&9{=}C;比重9.3;化合价2,3参见 element语源:After Thule 1源自 Thule1 |
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