natural oxidation process天然: natural; native; living氧化: oxidize; oxidate; oxide; bur ...过程: process; procedure; transver ...天然氧化膜: naturally occurring oxide film天然氧化铁: natural iron oxide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:天然氧化过程，即可在微信中查询翻译
