| 释义 |
DEFINITIVE EXAMPLES 权威例句〔groundmass〕The fine-grained crystalline base of porphyritic rock in which larger crystals are embedded.基质：斑岩中均匀的水晶质石基，其中嵌有大粒水晶美国传统〔phenocryst〕A conspicuous, usually large, crystal embedded in porphyritic igneous rock.斑晶：嵌在斑状火成岩中的一种显眼的、通常很大的晶体美国传统〔porphyroid〕Metamorphic rock having porphyritic texture.残斑岩：具斑岩状结构的变质岩美国传统 |