frequencies造句
For an initial service, a 10 megahertz-wide band of
frequencies will be needed.
初始服务需要10兆赫宽的频带。
Of an electronic circuit or device; having an output proportional to input; amplifying or attenuating all
frequencies equally.
说明一种电子电路或器件, 其输出和输入成比例, 对所有的频率都放大或衰减同样的倍数.
The electromagnetic spectrum covers an enormous range of
frequencies and energies.
电磁波谱包括极大的频率和能量范围.
...UHF
frequencies of around 900 megahertz.
大约900兆赫的超高频率
Sound - cancelling works by analysing any unwanted
frequencies and then producing counteracting ones.
通过分析所有不需要的声音频率,然后制造相应的部分替代,这样噪声就消除了.
At low
frequencies, such as 10 per sec., pulsation is sensed rather than vibration.
在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动.
A wavefront at high radio
frequencies or optical
frequencies impinging on the atmosphere is distorted.
高射电频率或光学频率的波阵面进入大气时受到畸变.
Twisted - pair conductors are sufficient if
frequencies of interest are below a few hundred kilohertz.
如果信号频率低于几百kHz,则使用双绞线就已足够.
If the
frequencies are low, this approach cannot be used.
若频率很低时, 这种方法就不能使用.
The characteristic values are the filter's middle
frequencies and their bandwidths.
滤波器有中间频率和带宽这两个特征值.