| 词汇 | calcium carbonate |
| 释义 | ˌcalcium ˈcarbonatenoun [u] (symbol caco₃) a white solid that exists naturally as chalk, limestone (= a type of white stone used in building) and marble (= a type of white stone that can be polished smooth and is used in building and for making statues) 碳酸钙（存在于白垩、灰岩及大理石中） |
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