brec.ci.an.(名词)Rock composed of sharp-angled fragments embedded in a fine-grained matrix.角砾岩:包含在细粒的母岩中,由尖角的碎石构成的岩石来源:Italian 意大利语 [of Germanic origin] * see bhreg- [源于日耳曼语的] *参见 bhreg-