heavy-duty
adjective [ before noun ] uk/ˌhev.iˈdʒuː.ti/ us/ˌhev.iˈduː.t̬i/
（尤指衣服、机器、设备等）结实的，耐用的
Heavy-duty clothing, machinery, or equipment is stronger than usual so that it can be used a lot, especially in difficult conditions.
heavy-duty tools/shoes 结实的工具／鞋子