短语词组短语manganese concretion 锰结核;锰质结核;锰结壳concretion forms 结核状hiatus concretion 沉积间断结核phosphate concretion 磷灰结核;磷结核Glass concretion 玻璃结石conjunctiva concretion 结膜结石coagulum concretion 凝固物cutaneous concretion 皮下结石;翻译 返回 concretion