Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/b23f1f995cb2ebc15347ebae65a2393d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 band-limited frequency spectrum是什么意思，band-limited frequency spectrum的翻译，band-limited frequency spectrum音标、读音、用法和例句_绍翊字体网有道词典