translation.en: Instead of being made on the face of the cone, it's made at literally billions of little independent points along this narrow column in the air, and so when I aim it towards you, what you hear is made right next to your ears.
translation.zh: 不是在这个表面形成 而是沿着空气中这条狭窄的带 数亿计独立的点而形成的 所以当我把它对准你 你听到的声音就在耳边形成