The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready.
The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter - satellite links , and start providing navigation services when ready .
What kind of testing will be performed on the three latest satellites?
What kind of testing will be performed on the three latest satellites ?
testing of a new system of navigation signaling and inter-satellite links
testing of a new system of navigation signaling and inter-satellite links