When cleaning, use only pure solvents to dissolve oils and other contaminants, then rinse the cleaned area with fresh methanol or deionized water.

• 进行清洁处理的时候，只使用纯净的溶剂来溶解油脂和其它的污染物,然后用新的甲醇或去离子水冲洗清洁过的区域。