基本解释[交通運輸工程]安全淨空高度英汉例句雙語例句The electric clearance check of tower head is an important measure to ensure the safe operation of overhead transmission line.塔頭電氣間隙校核是保証架空輸電線路安全運行的重要措施。safe overhead clearance更多例句专业释义交通運輸工程安全淨空高度