flint mill

短语

词形变化

flint mills 复数 flint mills

释义与例句

n.
  1. 1.

    A mill in which flints are ground.

  2. 2.

    An obsolete appliance for lighting a miner at his work, in which flints on a revolving wheel were made to produce a shower of sparks, which gave light without igniting the firedamp.

    历史 商务 采矿