英语词汇“tunnel liner”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tunnel liner
释义	tunnel liner tunnel liner [′tən·əl ‚līn·ər] (civil engineering) Any of various materials, especially timber, concrete, and cast iron, applied to the inner surface of a vehicular or railroad tunnel. (mining engineering) The timber, brick, concrete, or steel supports erected in a mine tunnel to maintain dimensions and safe working conditions.
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