wall guard การใช้

A fortresslike wall guards the small compound, complete with police sentries patrolling on top.
Men were under attack by the wall guards, unable to move due to the person behind them.
The death strip was covered with raked sand or gravel, rendering footprints easy to notice, easing the detection of trespassers and also enabling officers to see which guards had neglected their task; it offered no cover; and, most importantly, it offered clear fields of fire for the Wall guards.
In 1933-1934, the " General-Directorate for National Monuments and Buildings " ( ) was charged with the consolidation and reinforcement of the central vault; reconstruction of the slats, frame and roof with glazed tiles; installation of exterior wall guards; the opening of exterior cracks and reinforcing them with water-resistant cement; reinforcement of the dome with hidden iron struts; and the reconstruction of the lateral and central doors.