The electricity companies spend a lot of money each year, cutting the harm of transformers, trying to quiet the noise and maintaining equipment that is constantly affected by vibration.
电力公司每年花费大量资金，减少变压器的危害，试图降低噪音，维护经常受到振动影响的设备。
2
Before we can understand what this "noise" is, we need to understand how equipment designed to look for the space-time ripples caused by collisions between black holes and supernova explosions.
在我们探讨所谓的“噪音”之前，我们需要先理解设备是如何去寻找在黑洞和超新星碰撞过程中产生的重力波。
3
We have special software to analyse these signals, because when you look at celestial objects through the equipment we have, you also pick up a lot of noise.