Ukraine had been a test bed for Russian cyber-operations for years.

多年来，乌克兰一直是俄罗斯网络行动的试验台。

The instruments were deployed on the seafloor by remoted operated vehicle as part of the Mars seafloor observatory test bed Located at depth of 3,000 feet in Monterey bay.

作为位于蒙特利湾 3,000 英尺深度的火星海底观测台试验台的一部分，这些仪器通过遥控车辆部署在海底。