ULTRASOUND scanners are used for tasks as diverse as examining unborn babies and searching for cracks in the fabric of aircraft.
2
有人在美国化学学会大会(American Chemical Society conference)上说，5分钟的超声波(一项与孕期胎儿检查有关的常用技术)作用，也有类似的效果。
Five minutes of ultrasound - a technique normally associated with scanning babies in the womb - had a similar effect, an American Chemical Society conference heard.
3
超声检查显示没有胎儿，仅是一个“暴风雪”效应。
An ultrasound in this case revealed no fetus, only a "snowstorm" effect.
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