أرسل هذا في رسالة قصيرة: EXTRACTION OF STRONTIUM(II)BY CROWN ETHER: INSIGHTS FROM DENSITY FUNCTIONAL CALCULATION

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