英语语法分析

The steel pedestrian overcrossing is a kind of special structure.

钢结构人行天桥是一种特殊的结构形式。

Raising conductor suspension height is one of the solutions to problems of building overcrossing and em environment in regions with limited line corridors.

提高导线悬挂高度是解决线路走廊紧张地区的建筑物跨越和电磁环境问题的有效手段之一。