It works at a much lower frequency than the infrared sensors, and is less affected by dust particles.
它比红外传感器的频率要低得多，而且较少受到尘埃粒子的影响。
A vibration that has a higher or lower frequency than a sound, he found, tends to skew pitch perception up or down.
频率超过或低于声音频率的震动会分别引起音高知觉的上调和下调。
In fact, due to their lower frequency, at similar RF exposure levels, the body absorbs up to five times more of the signal from FM radio and television than from base stations.
事实上，由于频率较低，在射频接触水平相同的情况下，人体从调频收音机和电视吸收的信号比从基台吸收的信号要多四倍。
The results show that this testing system is fit for the test of DC signals, lower frequency signals and Power Frequency signals.
结果表明，该测试系统不仅适合于直流信号的测试，而且同样适合于低频信号、工频交流信号的测试。
These new resonant cells are greatly reduced in dimensions and very compact in structures, so it is possible to realize the lower frequency selective surface.
这类新型谐振单元尺寸大大缩小，结构紧凑，为低频段的频率选择性表面阵列的实现提供了可能。
It is a new technique of lower frequency.
这是一项新的降频技术。
The zero occurs at a lower frequency than the pole.
零点的频率比极点低。
PTTV spectrum of prehypertensive was shifted to lower frequency.
高血压前期病人的PTTV频谱具有向低频偏移的趋势。
As to auroral hiss, there are upper and lower frequency cut-offs.
极光嘶声则有明显的上截止频率和下截止频率。
The light emitted is at a lower frequency than the original radiation.
所发出的光要比所受照射的光频率低。
With the increase of thickness, absorption peaks moved to the lower frequency too.
随着吸波涂层厚度的增加，吸收峰位向低频方向移动。
In some cases, lower frequency may reflect the more complex nature of stress testing.
在某些情形中，频率越低可能说明压力测试越复杂。
Especially, in the lower frequency bands, the bigger calculation errors arise because of the few spectrum points.
特别是低频段部分，因为谱线数太少，会造成更大的计算误差。
With electrode thickness increases, passband ripple becomes smaller, center frequency moves toward lower frequency.
当电极厚度增加时，通带的涟波会变小，中心频率会降低。
The result indicated that the lower frequency anomalous dispersion can transfer the information of material structure.
结果表明，低频反常色散介电谱确实可以传达物质结构的信息。
Compared with other populations, the Bouyei nationality has a lower frequency of rolling, twisting and pointed tongue.
与其他群体比较，布依族卷舌率、翻舌率和尖舌率均较低。
Stability problem in X-band solid-state power amplifier is rather evident than other lower frequency solid-state power amplifier.
X波段固态功率放大器相对于较低频段的固态功率放大器，其稳定性问题更加突出。
Microwave circuits differ from lower frequency circuits in ground connection, interconnect and manufacturing of the transmission lines.
微波电路与低频电路的不同主要在于接地，互连与微带线的制造。
Because of oscillation of the blower load the variation of angular velocity of the blower rotor and beats in lower frequency are inevitable.
与风机负荷的波动相关，风机转子的角速度变化及相伴的低频拍振是不可避免的。
The joint interface is like a low filter, the higher frequency will be easily reflected, and the lower frequency will be easily transmitted.
节理面呈现出低通滤波器功能，频率越高越容易被反射，越低则越容易透射；
The removal of ultrafine particles in coal-fired fumes was studied experimentally based on lower frequency and higher intensity acoustic field.
对燃煤超细颗粒物在低频率高强度声场中团聚清除效果进行了实验研究。
Such a therapy may be less costly, but the major advantage of insulin Glargine remains the greater safety of a lower frequency of hypoglycemic reactions.
这种疗法的成本可能较低，但甘精胰岛素的主要优点是低血糖反应有较低的发生率，使其具有更大的安全性。
The studies have found that the radiation pulse will be broadened after passing through the UWB antenna, and the spectrum will shift entirely to the lower frequency band.
研究发现，脉冲信号通过天线后，辐射的脉冲信号会出现拖尾、振铃，所覆盖的频谱整体向低频端移动。
The pulsed current peak value and EP time have a important effect on removal of the surface oxide, the lower frequency should be adopted for thin sheet of aluminium alloy.
脉冲电流幅值和EP半波时间对铝合金表面氧化膜的清理有重要影响，在焊接薄板铝合金时应采用较低的脉冲频率。
The principal advantage of insulin Glargine over neutral protamine Hagedorn (NPH) insulin is in a lower frequency of hypoglycemic reactions, thus affording improved safety.
甘精胰岛素较中性鱼精蛋白锌胰岛素的主要优势是较少发生低血糖反应，从而具有较好的安全性。
Pure tone audiometry: Slight sensorineural hearing loss mainly at the lower frequency may be detected during or soon after attack. It may be recovered or lightened after the attack.
纯音测听：发作时或发作后不久，可检测到轻度的、以低频听力损失为主的感觉神经性耳聋，发作后恢复正常或减轻。
The 6kv transducer with the series-wound unit of the PWM pressure type can realize the output of the direct high pressure by collecting a lot of lower frequency conversion pressure.
单元串联多电平pwm电压源型6k V变频器采用若干个低压PW M变频功率单元串联的方式实现直接高压输出。
Because of the differing speeds at which the different frequencies travel, however, the high frequency portions of the signal will arrive on Earth before the lower frequency portions.
但是由于不同频率的信号传播的速度稍有不同，比较高频的部分会比低频的部分早一点到达地球。
Because of the differing speeds at which the different frequencies travel, however, the high frequency portions of the signal will arrive on Earth before the lower frequency portions.
但是由于不同频率的信号传播的速度稍有不同，比较高频的部分会比低频的部分早一点到达地球。
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