أرسل هذا في رسالة قصيرة: Carboxymethyl cellulose-assisted hydrothermal synthesis of PbS with nano- And micro-crystals

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