1. Leaky feeders and subsurface radio communication
پدیدآورنده : Delogne, Paul, 6391-
کتابخانه: Central Library and Documents Center of Industrial University of Khaje Nasiredin Toosi (Tehran)
موضوع : ، Radio in mining,، Tunnels -- Communication systems,، Radio -- Transmitters and transmission
رده :
TN
344
.
D38
