أرسل هذا في رسالة قصيرة: Preparation of novel polyvinylidene fluoride (PVDF) hollow fiber membranes via thermally induced phase separation

 ______      ___                ______   _____    
|      \\   / _ \\      ___    /_   _// |  __ \\  
|  --  //  | / \ ||    /   ||   -| ||-  | |  \ || 
|  --  \\  | \_/ ||   | [] ||   _| ||_  | |__/ || 
|______//   \___//     \__ ||  /_____// |_____//  
`------`    `---`       -|_||  `-----`   -----`   
                         `-`