标准号:PD IEC TS 62903:2023标准名称:PD IEC TS 62903:2023英文名称:Ultrasonics. Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method标准状态:发布日期:2025-03-19实施日期:0出版语种:归口单位:EPL/87提出部门:发布部门: