枯燥变精彩——对“网络技术应用”模块教学方法的探索
Published in 中小学信息技术教育 • Jan 1, 2006
Authors:
占太鹏
Abstract
Computer simulations to demonstrate the possibility of heating small tumors by appropriately driving the electronic control circuitry of an nxn square-element ultrasonic phased array are conducted. The synthesis method consists of simultaneously focusing the ultrasonic beam at different points unifo...
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