Because your 2% stop will have to be more than the averagenoise level away from the market.
因为在市场中，你的2%止损必须大于平均波动水平。
2
Because normally the electro-acoustic equipment, technical specifications are given quasi-averagenoise level, rather than quasi-peak noise level, this should be noted.
因为通常电声设备技术指标给出的是噪声准平均值电平，而不是噪声准峰值电平，这一点应加以注意。
3
But a study that compared the various modes of mass transit in New York City found that the subways topped all other transit types for averagenoise, at a grinding 80 decibels.