Clean them with approved solvents and remove all traces of solvents before exposing them to oxygen .
Clean them with approved solvents and remove all traces of solvents before exposing them to oxygen .
用认可的溶剂清洗，在以上物质与氧接触前，除尽所有的溶剂。。
Clean them with approved solvents and remove all traces of solvents before exposing them to oxygen .
用认可的溶剂清洗，在以上物质与氧接触前，除尽所有的溶剂。。