According to Sun Jiadong, the chief designer of the navigation system, "Many organizations have been using our system for a while, and they like it very much."
According to Sun Jiadong , the chief designer of the navigation system , " Many organizations have been using our system for a while , and they like it very much . "
Who is Sun Jiadong?
Who is Sun Jiadong ?
the chief designer of the navigation system
the chief designer of the navigation system