英语词汇“drill carriage”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	drill carriage
释义	drill carriage drill carriage [′dril ‚kar·ij] (mechanical engineering) A platform or frame on which several rock drills are mounted and which moves along a track, for heavy drilling in large tunnels. Also known as jumbo.
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