https://img20.360buyimg.com/vc/jfs/t1/111836/3/21326/312384/6205e6efE038178e3/a4f55894d4bfa6dc.png
最小测试噪音:30dB
最大测试噪音:130dB
https://img20.360buyimg.com/vc/jfs/t1/207877/9/17008/285798/6205e6f8E00463a59/4b7c664b2b43b3c5.png
最小测试噪音:30dB
最大测试噪音:130dB
https://img20.360buyimg.com/vc/jfs/t1/97922/27/21307/237491/6205e6faEc99d8e6e/abe437ca94c1e3b0.png
最小测试噪音:30dB
最大测试噪音:130dB