Inside and outside surface anti-corrosion treatment by hot dippingacid.
由热浸酸内外表面防腐处理。
2
The manner of dippingacid effects on catalysts surface then cause different catalyst performance.
不同的浸酸方式影响催化剂表面态，进而导致催化性能不同。
3
The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted aciddipping.