ZHANG yan-xin1, Liu chang-fu1, Jia chao-hua1, et al. SOUND VELOCITY MEASUREMENT BY ULTRASONIC INSTRUMENT[J]. Thermal power generation, 2009, 38(6): 102-103.
ZHANG yan-xin1, Liu chang-fu1, Jia chao-hua1, et al. SOUND VELOCITY MEASUREMENT BY ULTRASONIC INSTRUMENT[J]. Thermal power generation, 2009, 38(6): 102-103.DOI: