英语词汇“bar timber, back timber”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	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	state prosecutorial apparatus state prosecutors State prosperous and people peaceful state protection state protocol state protocol analysis state public property state purchase quota state purchase quotas state purchasing agency State Putonghua Proficiency Test state pwwer State Qin state quality state quality inspection of export goods state quality standards state quantities state queue state quo state quo of resource state quotas stater Statera state radio state railway