black oxide

短语

[化] 黑色氧化物(指VO-3)

词形变化

black oxides 复数 black oxides

释义与例句

n.
  1. 1.

    Any of several coatings for steels or copper; some are oxides (mainly iron(II,III) oxide), some are nitrites or nitrates, and some are selenides; all are black; the main purposes are the antireflective and cosmetic effects; the anticorrosion effects are small.

    可数 习语 不可数

    Near-synonym: blackening

    hot black oxide

    cold black oxide

  2. 2.

    Used other than figuratively or idiomatically: any oxide that is black; often, iron(II,III) oxide.

    可数 不可数