metal cementationmetallic cementation process渗: ooze; seep金属: metals genus法: law渗金属: diffusion metallizing; metallic cementation表面渗金属: metallic cementation下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:渗金属法,即可在微信中查询翻译