coal-floor

英['kəʊlfl'ɔːr] 美['kəʊlfl'ɔːr]
  • 煤层
  • coal n.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
  • residue n.残渣;剩余物;[律]剩余财产