In this case, manual cleaning using a wire brush or scraper is not efficient.
In this case, manual cleaning using a wire brush or scraper is not efficient.
而通过用钢丝刷、刮刀手动除去这些杂质的效果并不理想。
In this case, manual cleaning using a wire brush or scraper is not efficient.
而通过用钢丝刷、刮刀手动除去这些杂质的效果并不理想。