单词 groundmass 例句 DEFINITIVE EXAMPLES 权威例句〔granophyre〕A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.花斑岩:一种细晶的花斑岩,带有不规则交生的石英和长石的基质美国传统〔matrix〕Groundmass.板...