Warning: file_put_contents(): Only 0 of 6127 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 sound ranging英英字典_sound ranging剑桥英语解释_sound ranging柯林斯英文解释_沉淀汉英词典
1. N the determination of the location of a source of sound waves by measuring the time lapse between their transmission and their reception at microphones situated at three or more known positions 聲波測距法