發送短信 : Structure and magnetic properties of K2NiFe3.5v 3.5O16 with the hollandite structure

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