Warning: file_put_contents(): Only 0 of 7721 bytes written, possibly out of free disk space in /www/wwwroot/ndsq.cn/index.php on line 55 telescoping tube是什么意思,telescoping tube的翻译,telescoping tube音标、读音、用法和例句_开心英文字典_柠咚词
Instrument makers of the time also invented a trumpet with a sliding, telescoping tube extension. NPR: Young Tuba Player Gets Nod from Phila. Orchestra