chromate造句
Two - stage
chromate reduction has been used at several plants.
一些厂已采用两段铬酸盐还原法.
The potassium
chromate method is one regular method to determine COD.
重铬酸钾法是测定化学需氧量的常规方法.
Cr - Fe waste residue is derived from production of
chromate or chromium oxide.
铬铁废渣是生产铬盐或其氧化物所排放的废渣.