定点音响是一种新技术，像剧院中的聚光灯一样，公司能用它来汇聚声音。
Directed sound is a new technology that allows companies to use sound in much the same way spotlights are used in the theater.
本发明是一种同轴共焦旋转抛物面镜聚光器，属于平行光汇聚的技术领域。
The invention relates to a concentrator of a coaxial confocal rotating paraboloidal mirror, belonging to the technical field of parallel light convergence.
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