扬声器的位移共振与速度共振 - 中南大学学报（自然科学版、英文版） 关键字: 扬声器；位移共振；速度共振[gap=1057]Key words: loudspeaker; displacement resonance; velocity resonance
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The researchers used 'diffusion tensor' magnetic resonance imaging (MRI), which depicts the diffusion, or displacement, of water molecules through tissue.
研究人员使用“扩张量”核磁共振技术，即描述组织中的水分子的扩散或者置换程度。
Normal modes in the pole and important characteristic parameters such as resonance frequency and position of the displacement node are obtained using the finite element method.
并应用有限元法对变幅杆进行了模态分析，得到了共振频率和位移节点等重要参数。
Then theoretical resonance length, small end diameter, displacement node, magnification factor, shape factor and other parameters of the amplitude amplifier pole could be determined.
确定出其理论共振长度、小端直径、位移节点、放大系数、形状因数等参数。
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