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The quality of roller directly effect welded pipe quality.
焊管轧辊质量直接影响着焊管产品的质量。
youdao
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Old ladies will buy roller-skates and non-smokers will buy pipe-cleaners.
老太太会买四轮滑冰鞋，不抽烟的人会买烟斗通条。
youdao
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Old ladies will buy roller-skates and non-smokers will buy pipe-cleaners.
老太太会买四轮滑冰鞋，不抽烟的人会买烟斗通条。
youdao