英语词汇“steel tunnel support”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	steel tunnel support
释义	steel tunnel support steel tunnel support [′stēl ′tən·əl sə‚pȯrt] (mining engineering) One of the tunnel support systems made of steel; five types are continuous rib; rib and post; rib and wall plate; rib, wall plate, and post; and full circle rib.
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