单词	浮石--火山灰层
释义	浮石;火山灰层pumicite
随便看	extinction position extinction potential extinction price extinction probability extinction rate extinction ratio extinction ratio enhanced section extinction-ratio-enhanced section extinction ratio of transmitter extinction ratio--transmitter extinction rule extinctions extinction species extinction; straight extinction-- symmetrical extinction; symmetrical extinction temperature extinction test extinction time extinction-type extinction; undulatory extinction-- undulose extinction; undulose extinction voltage extinction vortex