metallic arc金属电弧metallicadj.金属的；金属般的metallic junction target金属结目标metallic cultural relics金属文物metallic porous material金属多孔材料metallic oxide catalysts[化] 金属氧化物催化剂metallic surface plasmon金属表面等离体子metallically packed food屏蔽包装食品metallic cavity aperture含孔缝金属腔体metallic air recuperator金属空气换热器metallic sprayed coating喷镀金属膜metallic standard system金属本位制

1. Metal hose, on the other hand, does not allow permeation.
   而金属软管是不容许渗透。
2. Specializing in the production of compensation, metal hose companies.
   专业生产补偿器，金属软管的公司。