أرسل هذا في رسالة قصيرة: Experimental characterization of a short electrical mobility spectrometer for aerosol size classification

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