And NASA's also testing key systems like communication, navigation and the spacecraft's heat shield.

NASA也在测试通讯、导航和航天器隔热罩等关键系统。

Another key system that suffers when you ingest, inhale or otherwise consume mercury?

当您摄取、吸入或以其他方式消耗汞时，另一个受到影响的关键系统是什么？

This is especially worrying to governments, as infrastructure is increasingly computer-driven, like powerplants, the electrical grid, traffic lights, water treatment plants, oil refineries, air traffic control, and lots of other key systems.

这尤其令政府担心，因为基础设施越来越多地由计算机驱动，如发电厂、电网、交通信号灯、水处理厂、炼油厂、空中交通管制和许多其他关键系统。