Use of laser directional signs in St. Petersburg subway construction
About authors
- 1 — Saint Petersburg Mining University
- 2 — Санкт-Петербургский горный ин-т
Abstract
The history of an introduction of the laser of direction is described at building undergrount of city, and also the characteristic of a modern park of the laser of direction and problem of usage them for today is given.
Область исследования:
(Archived) Without section
Funding:
None
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