SORU: boş bırakılan yere parçanın anlam bütünlüğünü sağlamak için getirilebilecek cümleyi bulunuz
Laying undersea cable systems is a monumental process. After surveying landing sites, studying seabed geology, and assessing risks, engineers plot a route. ----. For months, these ships lower the cables thousands of feet to the seabed. In congested spots, engineers use robots to dig trenches for the cable that protect it from wayward anchors and fishing nets. Then crews pull the cable ends above the water and connect them to land-based stations.