tufa
英[\'tju:fə]
美[\'tjufə]
基本释义
- n.
- 泉华，石灰华
实用例句
Spires of limestone tufa rise from the shores of California's Mono Lake.
图为石灰石泉华柱耸立在加利福尼亚的莫诺湖之滨.
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英英释义
Noun
1. a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
2. hard volcanic rock composed of compacted volcanic ash