单词	acoustic wave speed
释义	acoustic wave speed 声波速度
随便看	direct sowing in flooded paddy field direct sowing machine direct sowing of rice direct sowing on dry paddy field Direct sowing rice Direct-sowing rice direct sowing technology direct sowing with machine direct-sowing with plastic-film mulching Direct sowing with zero-tillage direct space management direct spark direct spark ignition direct special question direct spectrophotometry direct speech direct speech act Direct Speech and Indirect Speech direct speech oration direct speech performance direct speech transmission direct spermatocyte test direct spike direct spindle direct spindle drive