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  1. bolting

    • IPA[ˈbəʊltɪŋ]

    英式

    • n.
      the action of driving long metal pins into a rock face so that ropes can be attached to them.
    • noun: bolting

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    • IPA[ˈbōltiNG]

    美式

    • n.
      (in rock climbing) the action of driving metal pins into rock faces so that ropes can be ...

    Oxford American Dictionary