In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiationhead by using impulse sound tube is proposed.
本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
2
The wire on many headsets can act as an antenna, which can deliver a dose of electromagnetic radiation to your head.
许多耳机的线可以当做天线，将电磁辐射传播到你的头部。
3
Dr Martha Linet, the head of radiation epidemiology at the us National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion.