measurement microphones-part 4 : specifications for working standard microphones 测量传声器.第4部分:工作标准传声器的规范
measurement microphones . part 4 : specifications for working standard microphones 扩音器的测量.第4部分:工作标准扩音器的规范
specification for measurement microphones-specifications for working standard microphones 测量规范.第4部分:工作标准传声器规范
measurement microphones-methods for pressure calibration of working standard microphones by comparison 测量传声器.用比较片做用工作标准传声器的压力校准方法
measurement microphones-part 4 : specifications for working standard microphones iec 61094-4 : 1995; german version en 61094-4 : 1995 测量传声器.第4部分:工作标准传声器规范