loose film

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loose film

loose film
loose film

loose film
loose
疏松的
film

loose film
疏松的膜
例句
The black and loose film of stainless steel anode was treated with KMnO4,H2O2、Carbon power ,whose colour became shallow.
不锈钢阳极上产生黑黑的疏松的膜,高锰酸钾KMnO4、H2O2、C粉处理后颜色浅了.