| 1. | Low frequency range
低通频率范围 |
| 2. | Jump of forced vibration amplitude of a loudspeaker driven by stable galvanic source in low frequency range
恒流源驱动下的扬声器低频跳跃 |
| 3. | The main purpose of this study is to simulation a random fluctuation of wind velocity fitted to specified power spectrum in low frequency range in our wind tunnel
本文研究的目的是在风洞中模拟风速随机波动的阵风，这个基础性工作对于开展风洞中的其它研究有着重要意义。 |
| 4. | Compared with quasi - resonant , it can reduced transistor voltage stress and improved load range and stability in low frequency range . because of the structure of three - level , transistor voltage stress and filter can be reduced significantly
与传统的准谐振变换器相比，该变换器功率器件的电压应力大大降低，在很窄的开关频率变化范围内实现宽负载范围的软开关。 |
| 5. | In view of that the plane wave theory is suitable only in lower frequency range , the three - dimensional finite element method is applied to analyze the acoustic characteristics of air cleaner in the present study for broadening the frequency range
由于一维平面波理论只适于低频分析，为了扩大分析的频率范围，采用了三维有限元数值方法分析空气滤清器的声学特性。 |
| 6. | Our national capacitance metrology level in the low frequency range ( below 10 khz ) has reached the international advanced level . but with the development of science and technology , there exists a big difference between our national and international advanced level in the aspect of the frequency range and the capacitance range etc , especially in the aspect of the frequency range . so the capacitance metrology technology in high frequency cannot meet the need of testing for impedance metrology standards and the measurement instruments
在低频段( 10khz以下) ,我国电容计量水平已达到国际先进,但随着科技的发展,在频率范围、量值范围等方面与国际先进水平有较大的差距,特别是在频率范围方面,不能满足进口阻抗计量标准器及其测量仪器的检定测试要求,迫切需要在频率范围上进行扩展。 |
| 7. | This continuous rule can put the suspension system in the optimal damping state . the skyhook principle can be combined in this control rule , which can further attenuate the vibration of the car - body in lower frequency range , but the acceleration response in higher frequency range tend to be larger
文中还研究了把基于天棚阻尼原理的阻尼控制策略结合到该控制系统中的复合控制方法，前者能使系统始终处于最优或次优阻尼，后者则能进一步衰减低频振动，但也有增大高频响应的趋势。 |
| 8. | The arcs representing grain interior conduction mechanisms appear on all complex impedance plots , and occur at high frequency rang and contract with temperature . however , those arcs representing grain boundary and occurring at low frequency range were observed only in a small number of experimental runs
而反映颗粒边界导电机制的阻抗弧并不明显，两种阻抗弧出现在不同的频率范围内，反映颗粒内部导电机制的阻抗弧出现在频率较高的范围内，而反映颗粒边界导电机制的阻抗弧出现在频率相对低的范围内。 |
