Through this thirty-hour interval the surrounding Jovians continued their attack with a patience and persevering relentlessness concerning which robot ZZ One made a good many mental notes.

concerning which robot ZZ One made a good many mental notes，是定语从句（最好改为非限制性定语从句，在 concerning 之前加一逗号），which 指代整个主句，concerning 是分词介词“关于；涉及”，意思等于about。

【翻译】在这三十个小时的间隔时间里，周围的乔维安人以一种耐心和不屈不挠的精神继续着他们的攻击，关于这一点，ZZ 1号机器人做了许多心记。