可逆法 meaning in English

reversible process

Measurement microphones ; part 2 : primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
测量传声器.第2部分:用可逆法对实验室标准传声器的压力校准的基本方法
Measurement microphones ; part 2 : primary method for pressure calibration of laboratory standard microphones by the reciprocity technique iec 61094 - 2 : 1992 ; german version en 61094 - 2 : 1993
扩音器的测量.第2部分:可逆法校准实验室标准扩音器压