负离子的英文怎么说
负离子的英文: This paper introduces a new air negative ion producer. A compound containing the divalent negative ion,Cr2O7,usually having a characteristic orange - red color. n. 阴离子 A variety of dilute mineral acids are used to extract the anions The metal ion and the anion of the mineral acid form an insoluble salt Anion-chromatographic procedure is described for the determination of impurities in tripolyphosphate. Preferably, the anion portion of the salt is permanganate, iodate, dichromate or hyperchlorite Hence a variety of dilute mineral acids are used to extract the anions adj. 否定的;反面的;负的阴性的 n. 否定,拒绝;负数 v. 否定,拒绝 Their criticism was not negative. The vote is in the negative. A negative vote or voter. Photo negatives smudge easily. The tests for hepatitis were negative. |