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单词 trass
释义

Definition of trass in English:

trass

(also tarras)
noun trastras
mass noun

  • A light-coloured variety of volcanic ash resembling pozzolana, used in making water-resistant cement.

    粗面凝灰岩，火山灰（用来制作防水水泥）

    Example sentencesExamples
    • Although usually of lead, in Deptford the cooler was made of tarras, a cement which, like lead, did not dissolve in the acidic solution.

Origin

Late 18th century: from Dutch tras, German Trass, based on Latin terra 'earth'.

Definition of trass in US English:

trass

nountras

  • A light-colored variety of volcanic ash resembling pozzolana, used in making water-resistant cement.

    粗面凝灰岩，火山灰（用来制作防水水泥）

    Example sentencesExamples
    • Although usually of lead, in Deptford the cooler was made of tarras, a cement which, like lead, did not dissolve in the acidic solution.

Origin

Late 18th century: from Dutch tras, German Trass, based on Latin terra ‘earth’.
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更新时间：2025/7/17 22:18:21