English to Czech Tech/Engineering Construction / Civil Engineering railway costruction - geocomposite materials

v tomto kontextu: Norfolk Southern USA (Virginia Division/Christiansburg District) XXXXXXX was installed at three locations on the Virginia Division / Christiansburg District during September and October, 2014. All three had been undercut within the previous two years, and, because of pumping failure, needed undercutting again. Following the installation of XXXXX there has been no further contamination of the ballast and the trackbed has continued to perform well to this day. Nebo i zde: http://jdem.cz/fg4cg4