the long distance transportation pipeline
the long distance transportation pipeline
长距离输送管道
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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A reasonable selecting of welding methods and applying corresponding welding technology are the keys to ensure the welding quality of long-distance transportation pipeline.
合理的选择焊接方法和应用相应的焊接技术是保证长输管道焊接质量的关键。
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