The reagent is a solution of sodium chromate and mitric acid.The mold can be used repeatedly as proven by a surface study under the metallurgical microscope after electroforming and separation.是什么意思_The reagent is a solution of sodium chromate and mitric acid.The mold can be used repeatedly as proven by a surface study under the metallurgical microscope after electroforming and separation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句