發送短信 : Detect metal ions in water by using a fabry-perot interferometric fiber optical sensor.

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