• The results showed that the using amount of PC had a great effect on the notched impact strength.

    结果表明,对共混体系缺口冲击强度影响较大的体系中PC含量

    youdao

  • The results showed that the using amount of PC had a great effect on the notched impact strength.

    结果表明,对共混体系缺口冲击强度影响较大的体系中PC含量

    youdao

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