At the bottom hung its reverted shade.
水底下挂着倒影。
Solved the difficulty in switching small Angle with common top hung and bottom hung, completely to satisfy our need of ventilation in a building.
解决了普通上悬或下悬开启角度小的困苦，充分满足建筑的通风要求。
Additionally, system solutions for natural smoke and heat exhaust ventilators (NRWG) were tested according to EN 12101-2 for turn-tilt and bottom hung windows.
除此之外，根据有关“内开内倒窗和下悬窗”的EN 12101-2标准，也对自然排烟和排热通风装置（NRWG）的系统解决方案进行了测试。
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