Like NDVI, This dual-channel ratio index has the advantages that could attenuate conventional equipment noise and atmospheric effects.

这种双通道比值指数和NDVI一样具有衰减仪器噪声和抵消常规大气影响的优点。

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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。

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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。

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This new research, then, will serve multiple functions: Using specialized sensors, processors, and algorithms, the project team will measure noise in real time, tracking both the noise generated by various pieces of wave energy equipment and general background noise.

FORBES: Wave Energy: The Latest Battleground in the Conservation vs. Innovation Debate

Phase-shifting is the same process behind noise-cancelation equipment and polarized sunglasses.

FORBES: Trick of the Light

Norway has just emerged to say the air conditioning is switched off in the room because it makes too much noise when the recording equipment is switched on.

BBC: In a bedroom with Madonna