The smaller the lagging working face distance, the greater the drop in water content, and the larger the lagging working face distance, the smaller the drop in water content and showing a gradual stability trend.
The smaller the distance of the lag work surface, the greater the decrease in moisture content, the greater the distance of the lagging work surface, the smaller the decrease in water content, and show a gradual and stable trend.
The smaller the distance behind the working face is, the larger the decline range of water content is. The larger the distance behind the working face is, the smaller the decline range of water content is, and it shows a gradually stable trend.<br>