The composition and operating principles of a wetness detection ultrasonic device are predicted from an theoretical perspective.

对超声湿度检测计的组成、工作原理作了理论上的预测。

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The application and principle of ultrasonic device to prevent scale depositing for the sulfuric - contained sewage stripping unit were introduced.

介绍了超声波防垢器的防垢机理及其在含硫污水汽提装置的应用情况。

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For instance, teams of blind children can enjoy fast -moving games of soccer with a bell inside the ball and a new hand -held ultrasonic device to guide them.

比如，一队盲人可借助内装有铃的球和指导他们的超声装置来欣赏快速运动的足球赛。

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MRI, Dr Giorgio employed an ultrasonic scanner to help him guide the device which generated the radio waves to its target.

ECONOMIST: Thermal treatments of cancer are remarkably effective