Machines for compacting, adjusting, tamping, aligning and stabilizing the railway track and for ballast shoulder forming. General technical requirements
Receiving amplifier and transmitting tubes with power to 25 watt continuously scattered by anode. Measurement methods of dynamic amplification factor and amplification asymmetry at LF
Unified system of corrosion and ageingp rotection. Metals and alloys. Methods for determining the growth rate of small cracks under environmental influences
