One water sac was placed on the epicardium and the exploration was performed by the detecting head 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。

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The effect on measurement of the isolator material and the magnitude of heating current inside the detecting head 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。

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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 detecting head.

方法对25例有明确异物吞入史，但X线探查为阴性的患者，运用超声高、低频探头对可疑部位进行探查定位。

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The study's authors emphasized that the overall likelihood of getting the cancers remained very small and that the immediate benefits of the scans, such as in detecting head injuries, still outweigh the risks.

WSJ: Childhood CT Scans Pose Cancer Risk

"If there is a supernova in our vicinity during the next couple of months, our chances of detecting and measuring the resulting gravitational waves are good, " said Professor Karsten Danzmann, head of the International Centre for Gravitational Physics, which is jointly run by the Max Planck Society and the University of Hanover.

BBC: Lab tuned to gravity's 'ripples'