أرسل هذا في رسالة قصيرة: Tunnelling in soft clay : a study of the tunnelling work under Kallang Basin in the circle line MRT project in Singapore

  ____      ______    ______   _    _    __   _   
 |  _ \\   /_   _//  /_   _// | || | || | || | || 
 | |_| ||   -| ||-   `-| |,-  | || | || | '--' || 
 | .  //    _| ||_     | ||   | \\_/ || | .--. || 
 |_|\_\\   /_____//    |_||    \____//  |_|| |_|| 
 `-` --`   `-----`     `-`'     `---`   `-`  `-`