One water sac was placed on the epicardium and the exploration was performed by the detectinghead on the water sac.
然后将其行开胸手术，悬吊心包，在心外膜上放置一水囊，将探头放置于水囊上进行探查。
2
The effect on measurement of the isolator material and the magnitude of heating current inside the detectinghead is discussed.
讨论了探头内部的绝热层材料和加热电流的大小对测量的影响。
3
Methods 25 patients who had foreign body inside the digestive tract but the X-ray exploration was negative, were exarnined with ultrasonic inspection with high and Iow frequency detectinghead.