There are still hundreds of people, possibly more, suffering from silicosis, a disease of the lungs caused by continued inhalation of siliceous dust - limestone - a condition which is characterized by progressive fibrosis and chronic shortness of breath.展开全文
#深度#【“世界矾都”的旅游新路】Fanshan, a township under the administration of Wenzhou city in Zhejiang Province, is renowned for its mining and production of alum. It has been dubbed the world's capital of alunite, or hydrated aluminium potassium. 🔗 网页链接展开全文
