签发许可证英语

perpetual license[英][pəˈpetʃuəl ˈlaisəns][美][pɚˈpɛtʃuəl ˈlaɪsəns][法]永远许可证; 例句Today, software companies that rely upon a perpetual license "do ityourself" model struggle to compete against the software as a servicebusiness model. 现在那些靠永久许可证“自助式”模式的软件企业就得强打精神和软件即服务这一模式展开竞争。