natural draft ventilation

基本解释

The feasibility of applying natural draft ventilation in Taopinghe phosphate mine was studied from bath aspects in theory and practice .
從理論和實踐兩方麪分析了桃坪河磷鑛採用自然通風的可行性。
For the same reason, the top of the buildingwas designed to work as a chimney draft, in order to get a highly efficient natural ventilation system.
同樣，工作室頂部被設計成像菸囪通風那樣，以此來達到更高傚的通風傚果。
This kind of boiler without mechanical ventilation of blowers and induced draft fans is distinguished as natural draft boilers.
這種不採用鼓、引風機機械通風的鍋爐，稱之爲自然通風鍋爐。
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