sand battery

短语

词形变化

sand batteries 复数 sand batteries

释义与例句

n.
  1. 1.

    An unspillable electrochemical battery whose cells use electrolyte soaked sand – typically used to test telegraph cables at sea.

    历史 商务 工程 物理 电子
  2. 2.

    A sand fort equipped with an artillery battery, frequently found in coastal defense, usually having organic infantry attached.

    历史 政治 军事
  3. 3.

    A thermal storage battery which uses sand as the storage medium.

    物理