3325英语网 英语单词
Trona的音标发音
Trona
英式发音：[trәunә]
美式发音
(n.) A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O, occurring as a white crystalline fibrous deposit from certain soda brine springs and lakes; -- called also urao, and by the ancients nitrum.
录入:罗兰
