After two days of silence ground control teams received a signal that the spacecraft had put itself into an emergencystandby mode.
经过两天的沉默，地面控制队接到信号的飞船把自己变成了紧急待命模式。
2
Surveillance patrols and emergencystandby crews shall be available throughout all pressure testing activities to patrol road crossings or other high profile points associated with a test section.