What we didn't know at the time was that the civil engineers would have loved, needed the data as we recorded the box beams, the serial numbers, the locations, as we went into the rubble.
而有一件事我们当时不知道， 就是土木工程师十分需要了解 箱型梁的编号和位置， 而这些数据在机器人刚进入废墟时， 就应该开始记录。