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link 23.02.2010 15:19 |
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Subject: expandable anchor O&G, oilfield. Это устройство из области бурения скважин, применительно к бурению расширяющимися трубами. Например:The expandable anchor features hydraulically-actuated blocks designed to engage open hole formations in a predetermined size range, eliminating deployment problems due to well bore irregularities. |
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