名词铷
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1. 铷(Rb)(稀金属元素)：摩擦 rubbing | 铷(Rb)(稀金属元素) rubidium | 浇口箱 runner box
2. 钕：rubbur tubing 橡皮管 | rubidium 钕 | ruby 红宝石
3. 銣 铷：36 Kr 氪 氪 Krypton | 37 Rb 銣 铷 Rubidium | 38 Sr 鍶 锶 Strontium
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
Synonym: Rb atomic number 37