中英▼

  • The high accuracy closure of steel trussed arch was ensured due to using correct assembly order and taking national technical measures.

    合理的安装顺序和工艺技术措施保证了钢桁拱的高精度合龙。

    youdao

  • The high accuracy closure of steel trussed arch was ensured due to using correct assembly order and taking national technical measures.

    合理的安装顺序和工艺技术措施保证了钢桁拱的高精度合龙。

    youdao

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