أرسل هذا في رسالة قصيرة: Spatial variability of grouting layer of shield tunnel and its effect on ground settlement

  ____      _____    ______      ___     _    _   
 |  _ \\   |  ___|| |      \\   / _ \\  | \  / || 
 | |_| ||  | ||__   |  --  //  / //\ \\ |  \/  || 
 | .  //   | ||__   |  --  \\ |  ___  ||| .  . || 
 |_|\_\\   |_____|| |______// |_||  |_|||_|\/|_|| 
 `-` --`   `-----`  `------`  `-`   `-` `-`  `-`