基本解释[交通运输工程]安全净空高度英汉例句双语例句The electric clearance check of tower head is an important measure to ensure the safe operation of overhead transmission line.塔头电气间隙校核是保证架空输电线路安全运行的重要措施。safe overhead clearance更多例句专业释义交通运输工程安全净空高度