雷电防护分区
thunderbolt shield subarea
反差控制紫外线防护护目镜
ultraviolet contrast-control safety goggles
分区防水
Partitioning waterproofing
sectional waterproofing
Isolated waterproofing section
库区防护
protection of reservoir area
雷电防护区
lightning protection zone
lightning protection area
耕地保护分区
farmland protection division
分区分层
Sub-region and hierarchical
region and gradation
分区分带特征
distribution characteristics
分区分点法
Method of Different Point and Different Region