我怀孕了！你想看我的超声波图吗？
在几周内，你可能还不能够通过声波图或者多普勒超声听到婴儿的心跳，但当你最终听到时，那快速的断断续续的节奏巩固你身体里有个小生命的证据。
While you may not be able to hear the heartbeat through a sonogram or Doppler for a few weeks yet when you finally do the rapid staccato beats will be concrete evidence of the life inside you.
安装之初，Asis就按飞机的声波标记图进行了校准。
When first set up, Asis is calibrated to the acoustic signature of the aircraft.
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