raising the efficiency and benefit
raising the efficiency and benefit
提高效率和效益
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The successful experience and the initial knowledge were summarized, and it will be benefit for further simplifying well bore construction, cutting cost and raising working efficiency.
总结出一套使用套管钻井的成功经验和初步认识，对今后在我国海洋钻井作业中进一步简化井身结构、降低成本、提高效率，具有十分重要的指导意义。
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