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reflecting plane中文什么意思

发音:   用"reflecting plane"造句

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  1. Acoustics . determination of sound power levels of noise sources using sound pressure . survey method using an enveloping measurement surface over a reflecting plane
    声学.使用声压法对噪声源声强级的测定.在反射平面上利用包封测量表面的测量法
  2. Acoustics - determination of sound power levels of noise sources using sound pressure - engineering method in an essential free field over a reflecting plane iso 3744 : 1994 ; german version en iso 3744 : 1995
    声学.使用声压的噪声源声音强度级的测定.在一个基本
  3. Acoustics - determination of sound power levels of noise sources using sound pressure - survey method using an enveloping measurement surface over a reflecting plane iso 3746 : 1995 ; german version en iso 3746 : 1995
    声学.声压法测定噪音源声功率级.包络面简易测量法
  4. Acoustics . noise emitted by machinery and equipment . measurement of emission sound pressure levels at a work station and at other specified positions . engineering method in an essentially free field over a reflecting plane
    声学.机械和设备排放的噪声.工作站和其它规定场所声压级的测量.反射平面上基本无声波场的工程测试法

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