词汇	sealed pressure ratio
释义	sealed pressure ratio 密封比压
随便看	topographically very uneven topographical manuscript topographical map topographical map of mining area topographical map of urban topographical map of urban area topographical mapping topographical maps topographical maps editor topographical maturity topographical meridian topographical microstructure topographical model topographical observation topographical parallel topographical parameters topographical pattern topographicalplan topographic change of river bed topographic character topographic characterics topographical plan topographical plotting topographical plumb line deflection topographical poetry