dì / zhì / xué / jiā / gēn / jù / yán / shí / de / jiě / lǐ / fāng / xiàng / pàn / duàn / tā / de / jié / gòu地质学家根据岩石的解理方向判断它的结构。Geologists determine the structure of a rock based on its cleavage direction.