冷却床引风管路可灵活地安装于设备的两侧，完善的通风除尘系统保证型砂中的有效成分损失最小。

Ventilation ductwork can be flexibly installed on both sides of the device, perfect ventilation and dust collection system will ensure the active ingredients of sand in the minimal loss.

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公寓通风良好，但在结构的关键部位有严重的热损失。

Flats were draughty, and the structure showed severe heat loss in critical areas.

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并阐明了降低通风系统压力损失的主要途径。

The main way to reduce the pressure loss in aeration system was also elaborated.

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