Warning: file_put_contents(): Only 0 of 6414 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 phononic band-gap是什么意思，phononic band-gap的翻译，phononic band-gap音标、读音、用法和例句_耀久九英英词典
The plane wave expansion method is introduced to calculate the band gap for two-dimensional solid phononic crystals with square lattices. 采用平面波算法研究了二维正方点阵声子晶体的禁带结构。