tufa cement凝灰岩水泥
dendritic tufa树枝状石灰华
reef tufa礁华
Tufa Tower雪花在泉华塔
Huanglong tufa黄龙钙华
microbial tufa微生物钙华
calcareous tufa[地质] 石灰华;上水石
lithoidal tufa石质石灰华
tufa stromatolite钙华叠层石
N（名词） a soft porous rock consisting of calcium carbonate deposited from springs rich in lime 石灰华 (Also called calc-tufa)