impurity
英 [?m'pj??r?t?]
美[?m'pj?r?ti]
- n. 雜質；不純；不潔
CET6擴展詞匯
詞態變化
復數:?impurities;
英文詞源
- impurity (n.)
- mid-15c., "thing which makes or is impure;" c. 1500, "fact or quality of being impure," from Middle French impurité, from impur (see impure). Related: Impurities.
雙語例句
- 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