改善及美化演唱者得嗓音，它具有中频温暖厚实、低频深沉有力、高频清晰明亮的声音特点。

Improve and beautify the singer to voice, it has low frequency warm thick, strong, high-frequency deep and clear voice features.

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对于那些中频声音性能在其中起着关键作用的应用(比如语音)，用六氟化硫(SF6)混合气体填充绝缘玻璃元件大有裨益。

For applications where middle frequency acoustic performance is critical (e. g. speech), insulating glass units can benefit from being filled with sulfur hexafluoride (SF6) gas mixtures.

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