In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head 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。
Color language is of an indispensable element in western painting, and color began to play its unique role the moment people had the impulse to paint.
色彩语言是西方绘画中不可或缺的重要元素，当人类意识到绘画时，色彩就以它特有的含义发挥着作用。
When pushed to the rigid board, the impulse member is engaged to the installation element. Thus, flexible PCB is connected to the rigid board mechanically and electrically.
当推动元件被推向刚性板而导致推动元件与安装元件啮合时，柔性印刷电路板与刚性板连接而电连接柔性板和刚性板。
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