A driving source for ultrasonic standing wave motor with adjustable frequency , phase and amplitude 幅度均可调整的驻波超声马达驱动电源
Measurement of sound - absorbing coefficient and sound - resistance rate by method of standing wave tubes 驻波管法吸声系数与声阻抗率测量规范
The electron ' s high probability zone formed spiral standing waves around the carbon atom ' s nucleus 电子的高概率区域形成了碳原子核周围螺旋驻波。
The discussion and computer dynamic simulation on traveling wave as the superposition of two standing waves 两驻波叠加为行波的讨论及计算机动态模拟
Definitions of radio frequency transmission lines ; mean characteristic impedance , mean standing wave ratio 无线电传输线路的定义.平均特性阻抗平均驻波比
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - method using standing wave ratio 声学.阻抗管中吸音率和阻抗的测定.驻波比率法
Acoustics - determination of sound absorption coefficient and impedance in impedances tubes - method using standing wave ratio 声学.阻抗管中吸声系数和阻抗的测定.使用驻波比的方法
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 1 : method using standing wave ratio 声学阻抗管中吸声系数和声阻抗的测量第1部分：驻波比法
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 1 : method using standing wave ratio 声学.阻抗管中吸声系数和阻抗测定.第1部分:驻波比率法
