Área de identidad
Código de referencia
CA WAGA 2023.62-2023.62-2023.62.132
Título
Constructing an anchor hole in the permafrost for support lines to an aerial communication tower at Isachsen. A hot air "steam jenny" was used to bore into frozen soil and permafrost.
Fecha(s)
Nivel de descripción
Unidad documental simple