發送短信 : Dielectric and piezoelectric properties of PZT-silica fume cement composites

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