ANSI ASA S2.31-1979 American National Standard Methods for the Experimental Determination of Mechanical Mobility Part I Basic Definitions and Transducers《机械导纳的试验测定方法 第1部分 基本术语和转换器》.pdf
Reaffirmed by ANSI July 10, 2001 Reaffirmed by ANSI November 5, 2004 g53g72g68g73g73g76g85g80g72g71g3g69g92g3g36g49g54g44g3g50g70g87g82g69g72g85g3g21g20g15g3g21g19g19g28g3Reaffirmed by ANSI September 11, 2014