Moreover, they will also be keeping a close eye on the sites' surface and atmospheric characteristics in order to gauge their safety for the landing system and rover.
此外，他们还要密切留意这几个地点的地表和大气特征，以确保着陆系统和探测器的安全。
2
Maintain measurement equipment list ; Regularly arrange calibration for measurement equipment , gauge, safety instrument calibration.
维护测量设备清单，并定期安排测量设备、计量器具、安全件的校准；
3
The Doomsday Clock isn't a clock and it doesn't keep time. It's a metaphor introduced by The Bulletin of the Atomic Scientists to gauge public safety.