英汉词典

  • trass

    英:[træs]   美: [træs] 

    trass 基本解释

    n.

    火山土;

    英英释义

    Trass

    Trass is the local name of a volcanic tuff occurring in the Eifel, where it is worked for hydraulic mortar. It is a grey or cream-coloured fragmental rock, largely composed of pumiceous dust, and may be regarded as a trachytic tuff.

    以上来源于:Wikipedia

    trass 相关例句

    权威例句

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