free field correction curves的意思|示意

自由场修正曲线 free field,自由声场 free field correction curves,自由场修正曲线 free-field frequency response of microphone,传声器自由声场频率响应 ..

自由场批改曲线 ... free field,自由声场 free field correction curves,自由场批改曲线 free-field frequency response of microphone,微音器自由声场频率响应 ...