英[\'graʊndmæs]
美[\'graʊndˌmæs]
Study shows that the Ordovician carbonate formation in this area characteristic of very low groundmass porosity.
明确了研究区奥陶系储层为超低基质孔的致密碳酸盐岩,岩溶作用为本区储层发育的主控因素.
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