hum noise measuring instrument哼声: groaning; hum; hum note; hum ...测量: survey; measure器: implement; utensil; ware哼声测量: hum measurement电声测量器: ekectroacoustical measurment下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:哼声测量器，即可在微信中查询翻译
