RB

英 美
  • n.[化]元素铷(rubidium)的符号abbr.无线电信标(=RadioBeacon)
  • electric adj.电的;电动的;带电的;刺激的n.电动产品
  • razor n.剃刀
Noun:
  1. a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite