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| churn drill; churn drill outfit (rig); free fall drill; pole drill; rope-system drill; spud drill; spudder (für seismische Bohrungen); spudder drill (für seismische Bohrungen); spudding drill | |||
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| churn drill; churn drill outfit (rig); free fall drill; pole drill; rope-system drill; spud drill; spudder (für seismische Bohrungen); spudder drill (für seismische Bohrungen); spudding drill | |||