Wang jun luo yan ping (2 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2023-10 Pages: 156 Publisher: China Architecture & Building Press This guideline specifies the design objectives and evaluation indicators for noise control of ventilation and air-conditioning systems in underground subway stations. It is applicable to the noise control design of the main noise source equipment in underground subway stations (including ventilation equipment in the station and trains running in the tunnel) to the public areas and equipment.…

paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2020-09-01 Pub Date: 2020-09-01 Publisher: China Construction Industry Press This book is in-depth supplementary research on the current application of the most open operation tunnel ventilation system. and has made a multi-line targeted field test. valid data. By setting simple and feasible system models. weaken lines. civil construction conditions on system operating status. highlight system characteristics .…