THE FIRST HALF-MILLION VOLT D.C. TRANSMISSION LINE (1965) (AAPG W3606/1161)
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- Опубликовано: 22 ноя 2011
- How electricity is fed to the Cook Strait submarine cable. Surveying for the line; building the bridges, roads, and camps needed; erecting a tower above Benmore dam; taking tow-ropes across country by hand and by tractor; and stringing and jointing conductors. 2K scan from 16mm print.
