downcomer

After retrofitting not only the water-dropping noise of the cooling tower has been reduced 13 dB, but also the outlet water temperature being lowered by 2.

改造后,冷却塔落水噪音降低了13dB,出塔水温降低了2。

Control of humidity change on the worsted fabrics by finishing;

精纺毛织物后整理中的落水变形控制

Measures and results of reducing water falling noise of refvigeratory-tower;

冷凝塔落水噪声的降噪措施及其效果