The design and manufactur of PU elastomer/steel composite disk are described in this paper.The composite disk was applied to the pilot experiment of dredger mud pump.是什么意思_The design and manufactur of PU elastomer/steel composite disk are described in this paper.The composite disk was applied to the pilot experiment of dredger mud pump.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句