美[?m?pj?r?ti] 1 . The oxygen reacts vigorously with the impurity in the iron.
氧氣與鐵中的雜質發生劇烈的化學反應.
來自辭典例句
2 . This impurity must be purged away after death.
這種污穢應該在死后加以凈化.
來自辭典例句
3 . The impurity of supposedly pure subcellular fractions is a constant threat to the plant biochemist.
以為亞細胞組分很純而實際不純的情況,一直是植物化學家感到難辦的問題.
來自辭典例句
4 . Silica, in fact, is a desirable impurity because it is one of the reactants.
硅石實際上是一種有用的雜質,因為它是一種反應劑.
來自辭典例句
5 . Reasons of forming first cracks were foundry lacuna, impurity gathering, lard exiting.
鑄造缺陷 、 雜質元素偏聚和夾雜物的存在是形成早期裂紋源的原因.
來自互聯網
1.worthless material that should be removed;
there were impurities in the water
2.the condition of being impure
