metallic arc金属电弧metallicadj.金属的；金属般的metallic carbon brush金属炭刷metallic thermocouple金属热电偶metallic spray coating金属熔喷盖层metallic poliomyelitis[医] 金属性假脊髓灰质炎Metallic acid pickling金属酸洗metallic nanopartieles金属纳米粒子metallic-fluid cycle液态金属循环Metallic nanoparticles金属纳米粒子metallic asbestos yarn金属芯石棉线metallic-based fibre涂塑金属丝