These sideroblasts of ineffective erythropoiesis, which means they don't develop normally to become a mature RBC, and end up dying in the bone marrow, with a few escaping into the peripheral blood.

这些红细胞生成无效的铁粒幼红细胞，也就是说它们不能正常发育为成熟的红细胞，大多会最终在骨髓中死亡，少量逸出到外周血中。