low frequency 是什么意思

中文翻译与英英解释

	【物理学】低频(率)。

	low: vi.,vt. (牛)哞哞地叫；哞哞地；(牛叫似地)说( ...
	frequency: n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...

	a pitch that is perceived as below other pitches 同义词：low pitch,
	30 to 300 kilohertz 同义词：LF,

Low frequency or low freq or LF refers to radio frequencies (RF) in the range of 30?kHz?300?kHz. Also known as the kilometre band or kilometre wave as the wavelengths range from one to ten kilometres, the low signal attenuation in this band allows long distance communication.

例句与用法

	1.	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。
	2.	Very little effort has been devoted to the experimental measurement of low frequency combustion response . 在低频燃烧响应的试验测定方面只做了很少的工作。
	3.	The mask acts as a low frequency spatial filter whose effect is to enhance rendition of fine detail . 掩模就象一个低频空间滤波器，其效果是增强细节的重现。
	4.	This effect is obvious at lower frequency band 这种效应在振动低频区段更为显著。
	5.	Verification regulation of low frequency phaser shifter 低频移相器试行检定规程
	6.	Test method for low frequency and spurious disturbances 低频与寄生干扰的试验方法
	7.	Verification regulation of low frequency signal generator 低频信号发生器检定规程
	8.	Acoustics - low frequency calibration methods of hydrophones 声学水听器低频校准方法
	9.	Low frequency scattering from cylindrical shell with rib 平顶有肋柱壳低频散射特性研究
	10.	Low frequency vibration measurement of offshore platforms 1海洋平台振动测试及振源分析

low frequency是什么意思

low frequency 是什么意思

中文翻译与英英解释

例句与用法