أرسل هذا في رسالة قصيرة: THE EFFECT OF PHOSPHORUS ADDITIONON THE ACTIVITYOF BISMUTH MOLYBDATE CATALYST FOR PARTIAL OXIDATIONOF PROPYLENE TO ACROLEIN

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