英语词汇“bar timber, back timber”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	bar timber, back timber
释义	bar timber, back timber 顶梁支架; 俗称“无腿棚子”。巷道或硐室两帮稳定不需支撑，仅用顶梁支承顶板的支架。
随便看	lengthtodiameter ratio length to diameter ra tio of flexspline length to diameter ratio of flexspline length to height ratio lengthtolength cure length to length cure length-to-length cure length tolerance length travel length under ultimate load length uniformity length uniformity ratio length unit length upstream reach length variation length variatoin length velocity relation length-velocity relation length wave lengthway lengthways lengthways milling length weld length width ratio length-width ratio

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