| 释义 |
calc-tu·fa AHD[kălkʹto͞o”fə, -tyo͞o”-] 也作 calc-tuff [-tŭf'] D.J.[ˈkælkˌtuːfə, -ˌtjuː-] 也作 calc-tuff [-ˌtʌf]K.K.[ˈkælkˌtufə, -ˌtju-] 也作 calc-tuff [-ˌtʌf]n.（名词）- Calcareous tufa, a porous or spongy deposit of calcium carbonate found in calcareous mineral springs.多孔状凝灰岩：石灰质的凝灰岩，碳酸钙多孔或有吸收性的沉淀物，出现在石灰性矿物泉中
- calc(areous) calc(areous)
- tufa tufa
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