electroacoustic frequency meter
[海运英汉词典]
electroacoustic frequency meter电声式频率计
是什么意思,electroacoustic frequency meter的解释,electroacoustic frequency meter的翻译
[进出口英汉词典] electroacoustic frequency meter
electroacoustic frequency meter
[海运英汉词典]
electroacoustic frequency meter是什么意思,electroacoustic frequency meter的解释,electroacoustic frequency meter的翻译
[进出口英汉词典] electroacoustic frequency meter