亚洲AV成人精品一区二区三区四区|快播日韩美嘛豆一区|国产欧美激情a级免费|一级黄片AAA色一品|久久国产成人精品Av|谁有AV免费观看|成人高清国产视频|日韩区欧美区久久综合一区|在线观看黄色网页|亚洲欧美国产11

單詞乎

rubidium

音標[ru:'bidi?m]
rubidium是什么意思、rubidium怎么讀

rubidium漢語翻譯

n. 銣
【化】 銣Rb
【醫(yī)】 銣(37號元素)

rubidium詞型變化

簡寫符號:Rb 

rubidium英語解釋

名詞 rubidium:

  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
    同義詞:Rb, atomic number 37

rubidium詳細解釋

ru.bid.i.um

n.Symbol Rb (名詞)符號 Rb
A soft silvery-white metallic element of the alkali group that ignites spontaneously in air and reacts violently with water, used in photocells and in the manufacture of vacuum tubes. Atomic number 37; atomic weight 85.47; melting point 38.89=C; boiling point '88=C; specific gravity (solid) .532; valence , 2, 3, 4.See table at element
銣:一種銀白色的軟的堿性金屬元素,與空氣接觸會立即燃燒,與水反應劇烈,用于光電池和制造真空管。原子序數(shù)37;原子量85.47;熔點38.89=C;沸點'88=C;比重(固體).532;化合價,2,3,4參見 element

來源:
From Latin rubidus [red] * see reudh-
源自 拉丁語 rubidus [紅色的] *參見 reudh-

0
糾錯