أرسل هذا في رسالة قصيرة: Multi-crack dynamic interaction effect on oil and gas pipeline weld joints based on VCCT

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