chimneyn.烟囱
chimney loss烟囱热耗
chimney fire烟囱火
chimney hood排气罩,烟囱帽
chimney cowl烟囱风帽
chimney arch炉拱
chimneystalkn.工厂的高烟囱
chimney core烟囱帽
chimneystackn.总烟囱
chimney wing壁炉烟道口翼墙
chimney jack旋转式烟囱帽