Sub-angular clast is about 30%; matrix is 70 %,of sheared chlorite.怎么翻译啊

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Sub-angular clast is about 30%; matrix is 70 %,of sheared chlorite.怎么翻译啊

切割的亚氯酸盐中,亚角(sub- “亚、次级”,angular “有棱有角的”)碎屑大约30%,基质70%.