chromium intensification造句

例句与造句

1. "Chromium intensification " or " Photochromos " uses potassium dichromate together with equal parts of concentrated hydrochloric acid diluted down to approximately 10 % v / v to treat weak and thin negatives of black and white photograph roll.
2. It's difficult to find chromium intensification in a sentence. 用chromium intensification造句挺难的