以下为句子列表：
英文: 4 Make a wiper trip to the 20 inch casing shoe.
中文: 短起下到20英寸套管鞋。
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英文: 5 The casing programme of this well is for 30” conductor (riser), 20” surface casing, 13 3/8” and 9 5/8” intermediate casing, and 7” liner.
中文: 本井的套管程序是：30英寸导管，20英寸表层套管，133/8和95/8英寸技术套管，最后下7英寸尾管。
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英文: A decorative casing for a light, often of paper.
中文: 灯笼灯的装饰性外套，经常用纸制成
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英文: Both the derrick deviation and the wellheads eccentricity will cause the serious wearing of the casing (or casing protecting tube) close to the wellhead.
中文: 摘要井架不正或井口偏心，会造成近井口套管（或套管防磨套）的磨损。
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英文: [English] Connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area, long length, as well as repairing the wrongly cut casing in well —— packer-type casing patch-connector.
中文: 修复面积大，长度长，破裂，损坏的井内套管，修复错断的井内套管时所用的新旧套管的连接密封装置—封隔器型套管补接器。
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