直圆形炉胆 circular furnace: 环形炉; 炉胆; 圆炉plain furnace: 平炉胆plain circular knitting machine: 单面圆型针织机circular reverberatory furnace: 圆形反射炉circular rotauy hearth furnace: 环形旋转炉底加热炉下载手机词典可随时随地查词查翻译