software key软件关键字softwaren.软件Software development life cycle软件开发寿命周期software copyright infringement软件版权侵权software simulation serial port软件模拟串口software testing and evaluation软件测评software technical architecture软件技术架构software development automation软件自动化software design and development软件设计和开发software performance evaluation软件性能评估, 软件性能评价software PLC development system软件PLC开发系统software reliability estimation软件可靠性估算