LED glass can block more than 40% of infrared and 99% of UV light, it is also a safe glass with partial sound-damping function.
LED玻璃可阻隔99%紫外线及40%以上红外线，具有部分隔音的功能，同时也是一款安全玻璃。
2
Internal Damping damps out any ringing or vibrations in the cone structure that would otherwise color the sound.
内部阻尼将任何在锥体结构中的鸣响或震动阻挡出去，否则会产生杂音。
3
The example given in this paper shows that the method is feasible to calculate the dynamic properties and sound radiation of surface damping-treatment structures.