《英文msh词典》Metals,Light
[主题词] Metals,Light
[同义词] Light Metals
[中文释义] 金属,轻
[英文释义] Metals with low specific gravity,typically smaller than 5,characterized by a single valence (1,2,or 3),a simple spectrum,strong electromotive force (positive),and colorless compounds. (From Grant & Hackh's Chemical Dictionary,5th ed)