詞語：Francium
Francium的意思
Francium 鈁;鍅;
Francium的參考例句
1.So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE! 對它所知甚少，因為在1立方英尺的鈾礦石中，僅有1個鈁原子！
2.Because Francium is mainly only found synthetically in laboratory research, it has no known use outside of the laboratory. 由於鈁主要僅在實驗室研究中產生，它在實驗室外沒有已知的用途。
3.any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium). 週期表中i族的任何單價金屬（鋰、鈉、鉀、銣、銫和鈁）。
4.any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium). 週期表中I族的任何單價金屬（鋰、鈉、鉀、銣、銫和鈁）。