| 1. | Norris , an intrepid entrepreneur who has no college degree but more than 43 patents to his name , invented both the crowd control tool , called the long range acoustical device ( lrad ) , and the display audio technology , called hypersonic sound ( hss )
他是一位无谓的企业家，他没有大学文凭，但却有拥有43个专利，他的发明包括人群控制工具，叫做远程声音设备（ lrad ） ，还有展示音频技术，叫做超音速声音（ hss ） 。 |
