单词	多驚
释义	同FEARFUL
随便看	backscattering thick-ness gauge backscattering thickness gauge backscattering thickness--gauge backscattering yield back-scattering， multiple back-scattering， saturation back-scatter measurement system backscatter meter backscatter method backscatter percentage backscatter radar back-scatter soil density gauge backscatter-to-extinction ratio backscatter visibility sensor back score back-scratch backscratch back scratcher backscratcher backscratchers back scratching backscratching back seal test back seat back-seat