基本解释纵向轨枕英汉例句双语例句This paper mainly analyzes the cause and brings forward preventive measures of longitudinal crack from bolt hole of the sleeper.本文主要对我国混凝土枕螺栓孔纵裂原因进行分析，提出局部特殊混凝土改进的思路。longitudinal sleeper更多例句词组短语短语longitudinal shrinking sleeper 纵向轨枕Sleeper longitudinal 纵向轨枕longitudinal sleeper更多词组专业释义交通运输工程纵向长枕经济学纵轧枕