tufan.
英 't(j)uːfə | 美 'tjʊfə
中文n. [地质] 石灰华；凝灰岩；泉华\nn. (Tufa)人名；(埃塞)图法
[地质] 石灰华；凝灰岩；泉华
n. (Tufa)人名；(埃塞)图法
词根词源
tufa (n.)type of porous rock, 1770, from Italian tufa "tufa, porous rock," probably from Latin tufus, tophus "loose, porous volcanic rock," said to be an Oscan-Umbrian loan-word. Related: Tufaceous.
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