| 单词 | lw | ||||||||||||||||||||||||||||||||||||||||
| 释义 | LWLWLwLWLwLw,former symbol of the element lawrenciumlawrencium,artificially produced radioactive chemical element; symbol Lr; at. no. 103; mass number of most stable isotope 262; m.p. about 1,627°C;; b.p. and sp. gr. unknown; valence +3. ..... Click the link for more information. , now Lr. Lwlawrencium(Lw) [law-ren´se-um]LwLwAn obsolete symbol for lawrencium, replaced by Lr.LW
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