护顶 meaning in Chinese
canopy guard
Examples
- Industrial trucks - overhead guards - specification and testing
工业用货车.护顶架.规范和试验 - Industrial trucks - overhead guards - specification and testing
工业用货车.护顶架.规范和检验 - Mining horizontal pillars with hydraulic roof propping in longwall caving method
在长壁式崩落法中用液压支柱护顶回采水平矿柱 - Discussions on pseudo - ceiling in downward piling access back - filling mining method
下向分层进路式充填采矿法假顶护顶途径探讨 - Machines for underground mines - safety requirements for hydraulic powered roof supports - part 1 : support units and general requirements ; german version en 1804 - 1 : 2001
地下采矿机械.液压护顶支撑物安全性要求.第1部分:支