發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

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