The text has been capably illustrated in a complex process utilizing original drawings, black-and-white scratchboard, and a computer program for color.
Using this method, isopachic fractional fringe orders can be measured with compensator, and the parallax and drift of fringe pattern can be eliminated.
Minish the well space and increase transflux routeways upper backwater and driving, especially setup precipitation well and drain residual water at the bottom of diving layer.
The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo.