impurity是什麽意思

impurity

英 [ɪm'pjʊərɪtɪ] 美 [ɪm'pjʊrəti]

n. 雜質；不純；不潔

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.

2. This impurity must be purged away after death.: 這種汙穢應該在死後加以淨化.

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.

4. Silica, in fact, is a desirable impurity because it is one of the reactants.: 矽石實際上是一種有用的雜質,因為它是一種反應劑.

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.

相關單詞