ULTRASOUND scanners are used for tasks as diverse as examining unborn babies and searching for cracks in the fabric of aircraft.
超声扫描仪有着广泛的运用，从胎儿检查到检测飞行器构造中的缝隙。
2
Because the fabric of an aircraft isn't replaced in its lifetime, they miss out on maintenance and spares orders and should use mergers to expand into higher-value work, he said.