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grainstone n
desert. 粒屑灰岩
geol. 粒状【屑】灰岩; 颗粒灰岩
oil 颗粒岩
tech. 粒状碳酸盐岩; 粒状灰岩; 颗粒石灰岩
grainstone: 3 phrases in 1 subject
Oil / petroleum3