radio wave propagation prediction 无线电波传播预测 radio wave absorbing material 无线电波吸收材料 propagation of high frequency radio wave 高频电波传播 相似单词 radio frequency n.无线电频率 radio n. 1.收音机,无线电设备 2.无线电广播台 3.无线电,无线电传送,无线电广播 4.无线电收发报机 v.[I...
In physics, the frequency of a sound wave or a radio wave is the number of times it vibrates within a specified period of time. 双语例句 例: You can't hear waves of such a high frequency. 你听不到这么高频率的声波。 例: a frequency of 24 kilohertz. ...
radio wave frequency射频 相似单词 LFabbr. [军] Low Frequency, 低频 ledger fclio,分类帐页 lf=light face[刷]细体铅字 radio frequencyn.无线电频率 low frequencya. 低周波的 propagationn.[U] 1. 传播;宣传 2. 繁殖;增值 radion. 1.收音机,无线电设备 2.无线电广播台 3.无线电,无线电传送,无线电...
(a) 第一組由 1 名高級電子工程師掌管,並由 3 名電子工程師協 助工作,負責管理低頻( 包括聲學) 實驗所、射頻實驗所和溫度 及濕度實驗所。 legco.gov.hk These services include, for example, the co-ordination of radio frequencies for the operation of a satellite by a satellite licensee, [.....
频繁the fact of sth happening often 3. [c][u] (声波或电磁波振动的)频率the rate at which a sound or electromagnetic wave vibrates(= moves up and down) 4. [c][u] 频率(无线电信号每秒电波数)the number of radio waves for every second of a radio signal...
1) Springfield's "classic rock" radio station broadcasts at a frequency of 102.1 MHz. What is length of radio wave in meters?某电台频率是102.1兆赫兹,求波长102.1*10^6=v/l=3*10^8/l波长l=2.94 m2) A beam of light has a wavelength of 506 nanometers. What is the frequency of the ...
A. frequency B. time C. rate D. wave 相关知识点: 试题来源: 解析 A 句意:无线电信号的频率为每秒200,000次。 frequency意为“频率”;time意为“时间,(一)次”;rate意为“速度,速率;率”;wave意为“波浪,波(长)”。这三个词都不能放在句中。
Radio waves: Radio waves are electromagnetic waves whose wavelength is more than the infrared rays. Therefore, the frequency of the radio waves is less than that of the infra-red rays. Wave Travel: The wavelength of a wave, {eq}\lambda {/eq} (m), i...
1. You can't hear waves of such a high frequency.你无法听到如此高频的声波。2. low frequency waves低频波3. the disturbingly high frequency of racial attacks种族攻击事件令人忧虑的高发率4. the link between agreement on coital frequency and happiness in marriage对性爱频率意见一致与婚姻幸福之间的关系...
利用混沌频率 调制技术 从噪声产生源头上降低了开关电源传导电磁干扰. 互联网 展开全部 英英释义 Noun 1. modulation of the frequency of the (radio) carrier wave 行业词典 体育 调频 电子学 调频又称 :调频(FM) 石油 频率调制 铁道 调频