focusing ring

英 美
  • 聚焦环,调焦环,调焦圈
  • focusing n.聚焦;调焦动词focus的现在分词形式.
  • ring n.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
    1. The second version also has wider and deeper knurling on the focusing ring than the previous version.
      第二版调焦环上的棱比前一版更宽更深。