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  _  __     ___               _    _     ______  
 | |/ //   / _ \\      ___   | || | ||  /_   _// 
 | ' //   / //\ \\    /   || | || | ||    | ||   
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 `-` --` `-`   `-`     -|_||   `---`    `--`     
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發送短信 : Intelligent flock of surface vehicles for collecting solid waste in bodies of water