| 释义 |
‖ urao Min.|ʊˈrɑːəʊ|
[Native name. So F. urao.]
= trona.
1839Ure Dict. Arts 1263 Urao, is the native name of a sesquicarbonate of soda found at the bottom of certain lakes in Mexico. 1863Watts' Dict. Chem. I. 796 Tetrasodic Carbonate or Sesquicarbonate of Sodium..occurs..as urao at the bottom of a lake in Maracaibo, South America. 1889Amer. Nat. XXIII. 814 The composition of urao, a mineral..from Venezuela. |