fog scale

例句：

1. 1. The fog scale reading was a bit low for this time of year.
   这个时间点的雾天尺度读数有点低。
2. 2. The fog scale is used to measure the amount of precipitation in the air.
   雾天尺度是用来测量空气中降水量的。
3. 3. The fog scale has been used to improve weather forecasting accuracy.
   雾天尺度已经被用来提高天气预报的准确性。