шахта gen.

[Sasha_L]

Монтаж ревизок, установка люков коммуникационных шахт.
как будет по английски - коммуникационные шахты?
Спасибо!

[gni153]

service duct

[adelaida]

communication shafts

hydraulic accumulating power
station comprises a pool located on earth surface, a
water intake facility, a vertical discharge water
duct, a communication shaft, an aeration shaft, an
inclined shaft of power delivery, a station unit with
hydraulic units, a lower pool with main chambers and
an inclined transport tunnel (http://www.freepatent.ru/images/patents/487/2490393/patent-2490393.pdf)