单词	可闻频率下限
释义	同听觉下限--可闻频率下限
随便看	beam accelerating voltage beam-accessed beam-accessible memory beam addressed metal oxide semiconductor beam addressed metal oxide semiconductor--beamos beam addressed metal oxide semiconductor，beamos beam aerial beam amplification be a man beam analyzer beaman arc beam and scales beam and slab structure beam and sling beam angle beaman's stadia arc beaman stadia arc beaman stadia arc=beaman arc beam antenna beam antenna system beam aperture beam approach beam approach beacon system beam approach beacon system (babs) beam approach beacon system 波束进场信标系统