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English to Russian translations [PRO] Tech/Engineering
English term or phrase:extension
“Open parts of the platform are lit by means of two “palm” type lamps equipped with 150 W bulbs fixed to the top of tilting masts 8 meters high via double cross heads with an incline of 15 degrees and an extension of 0.60 m. The spacing between masts is 25 meters…”
It’s a passage from a text on outdoor lighting. I’m puzzled here with the term “extension”.
Thank you in advance.