發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Influence of various replacement ratios of fly ash to concrete mixed with seawater