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  ______   _    _    _    _    _    _     ______  
 /_   _// | || | || | \  / || | || | ||  /_   _// 
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 /__//     \____//  |_|\/|_||  \____//     |_||   
 `--`       `---`   `-`  `-`    `---`      `-`'

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發送短信 : Light-tunable two-dimensional electronic devices