More than half of them failed some basic tests, such as checking radiation measurements.

其中超过一半的人未能通过一些基本测试，例如检查辐射测量。

The radiation measurements noted in the Science report were from the spaceship that carried the Rover exploratory vehicle to Mars in 2011. An instrument on the vehicle has been recording radiation levels since it landed on the red planet.

《科学》报告中提到的辐射测量来自于 2011 年搭载漫游者探测车前往火星的宇宙飞船。飞船上的仪器自它降落在这颗红色星球后一直在记录辐射水平。