發送短信 : Indentation and external pressure on subsea single wall pipe and pipe-in-pipe

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