AU

加法器、運算器、聲頻

金(79號元素)

學術名詞

• 奧鎮：外國地名
• 波長單位：醫學
• (1)angström unit：礦物學
• 埃單位 (2)天文單位：礦物學
• 天文單位：海事

英文釋義

1. a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia