短语词组短语burner radiation head piece 燃烧器辐射帽fuel burner head 燃料喷咀头;燃料喷嘴头burner head cracking 燃烧室头部裂纹burner head burning 燃烧室头部烧伤fuel head oil burner 燃料油燃烧器 返回 burner head