外接时钟 meaning in Chinese

external clock

Then , a comprehensive analysis to the design process of the parallel 6 dof platform testing and control system , which based on oop , is given in chapter four , firstly , the difficulty of precise timing and real - time response under windows is analyzed , and then two solutions to the problem are advanced . one of the solutions is to utilize multimedia timer to time and event to respond
第四章针对windows下难以实现精确定时和实时响应，提出了采用多媒体时钟和外接时钟实现精确定时以及采用事件和vxd实现实时响应的方案；对本系统用到的多线程技术进行了阐述；另外，还对本系统的实时性和可靠性进行了分析。