A music player directed sound waves at the cheese for six months. The experiment was titled Cheese in Surround Sound.

一个音乐播放器连续六个月冲着奶酪播放声波。该试验名为《环绕立体声中的奶酪》。

49. Directed sound can be used for .

49.定向声音可用于。

Directed sound is also beginning to appear in shopping centers and even at homes.

定向声音也开始出现在购物中心甚至家中。

Directed sound is a new technology that allows companies to use sound in much the same way spotlights are used in the theater.

定向声音是一项新技术， 它使公司可以像在剧院中使用聚光灯一样使用声音。