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Subject: типы лестниц tech. Помогите,пожалуйста, развести понятия:stair (маршевая лестница?), stairway, ladder (приставная?), stair towers (???) **Stairways** shall be provided for access to operating platforms at drum levels. **Ladders** more than 7 ft (2.1 m) from top of concrete or above platforms shall be provided with a safety cage for fall protection, in accordance with OSHA requirements. **Stair towers** shall be independent structures from the main HRSG structures, unless seismic considerations require that the stair towers be braced against the HRSG structures for stability. Спасибо! |
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stair towers - лестничные башни http://rus.proz.com/kudoz/english_to_russian/construction_civil_engineering/2950948-access_stair_tower.html еще встречал такое: stair towers - лестничные вышки |
| Ladder - вертикальная |
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