أرسل هذا في رسالة قصيرة: Multiphase flow dynamics of pyroclastic density currents during the May 18, 1980 lateral blast of Mount St. Helens

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