overhead clearance

顶部余隙
常用释义
顶部余隙;净空高度

例句

1·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。

同义词

顶部余隙;净空高度