Bruel & Kjaer传感器
bruel & kjaer BK Power Amplifier 2719 功率放大器 bruel & kjaer Hydrophone 8106 8106 水听器 bruel & kjaer Cable hydrophone AC-0101 AO-1433-D-300 线缆 bruel & kjaer Cable AO-0390-D-030 线缆 bruel & kjaer Adaptor cable WL-1260 适配器线缆 bruel & kjaer 1- Channel Microphone Conditioning Amplifier 2690-A-0S1 1通道传声器适调放大器 bruel & kjaer Cable coax single screen, AO-0087-D-030 信号线