The drilling is performed by automated drilling machines with placement controlled by a drill tape or drill file.
该机由自动打孔机和位置控制或磁带演练演练文件。
Some dimension show on drill chart are different from the drill tape, we suggest to follow the drill tape . Please refer to Q1.
客户分孔图中的孔径与钻带不符， 我们将按钻带做。请看Q1处。
Temporarily tape a template to the control panel and use a center punch to mark the drill holes and insure that their location does not wander during drilling.
暂时磁带模板，控制面板，并使用中心的力度，以标志孔和保证他们的位置不徜徉在钻井过程。
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