發送短信 : CORROSION INDUCED CRACKING IN CONCRETE

             ___      _____      ___      _____   
  ____      / _ \\   / ____||   / _ \\   / ____|| 
 |    \\   | / \ || / //---`'  / //\ \\ / //---`' 
 | [] ||   | \_/ || \ \\___   |  ___  ||\ \\___   
 |  __//    \___//   \_____|| |_||  |_|| \_____|| 
 |_|`-`     `---`     `----`  `-`   `-`   `----`  
 `-`