SO IN ADDITION to the seismographs, LIGO engineers have studded the facility with microphones and magnetometers, as well as sensors that monitor temperature, pressure and wind.

• 所以除了地震仪的记录之外，LIGO工程师还必须在仪器上装设传声器、磁强计，以及监控温度、压力和风力的感测器。