• The invention provides a method and a rolling mill capable of preventing, at least reducing eccentricity and un-round properties of rolled pipes.

    提供方法一种轧机,利用它们可以避免至少可以减小轧制 心和不圆的产生。

    youdao

  • The UN Security Council approved a fourth round of sanctions against Iran over its nuclear programme.

    联合国安理会批准了就核计划向伊朗第四轮制裁

    youdao

  • The final round of UN climate talks before this year's summit in Mexico, which begins at the end of November, has got under way in China.

    今年定于十一月底召开墨西哥峰会最后一轮国闲谈,中国拉开帷幕。

    youdao

  • The final round of UN climate talks before this year's summit in Mexico, which begins at the end of November, has got under way in China.

    今年定于十一月底召开墨西哥峰会最后一轮国闲谈,中国拉开帷幕。

    youdao

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