أرسل هذا في رسالة قصيرة: Evaluation of trace metal speciation and bioavailability in anaerobic systems

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