正面固定 meaning in Chinese

face lock

Road vehicles ; frontal fixed barrier collision test method
道路车辆.正面固定障碍物碰撞检验方法
Road vehicles - frontal fixed barrier or pole impact test procedure
道路车辆.正面固定障碍物或杆碰撞试验程序
Specification for mechanical performance of peg - type casement stays and face - fixed wedge - action fasteners
拴柱式窗扉撑条和正面固定楔入式紧固件机械性能规范