In these patents, Apple refers to a system that could "include a set-top box with or without a digital video recorder DVR or, personal video recorder PVR."
在这些专利中，苹果提到一种系统，可能“包括一部带或不带数字录像机(或者个人录像机)的机顶盒。”
2
The controller 218 is connected or connectable with a host system such as a personal computer, a digital camera, personal digital assistant, etc.
控制器218与或可与例如个人计算机、数码相机、个人数字助理等主机系统连接。
3
In order to apply the theory of deficit irrigation to practice, a decision-making system for deficit irrigation based on PDA(PersonalDigital Assistant) is developed.