... backlash 齿隙；后退 backscatter meter 反散射计 backscatter visibility sensor 反散射能见度感应器 ...
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短语
反向散射厚度计
back-scattering thickness gauge
;
scattering thickness gauge
反散射测量计
beta backscatter gage
;
beta backscattering gage
射线反散射厚度计
gamma backscatter thickness meter
射线反散射测量计
gamma backscatter gage
反向散射丈量计
backscattering gauge
携带式反散射厚度计
portable gamma back scatter thickness meter
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