1.
Very Low Frequency Propagation Phase Prediction and Study on C-layer Effect;
甚低频传播相位预测与C层效应研究
2.
Loss of phase period is an improtant phenomenon of radiowave propagation, especially, the propagation of LF and VLF radiowaves.
相位周期丢失是电波传播中的一个重要传播现象,特别是对于低频和甚低频传播。
3.
Influences of solar flare bursts and partical precipitation on the lower ionosphere have been observed by means of VLF propagation effects at Zhongshan Station in Antarctica.
在南极中山站利用甚低频传播手段观测太阳耀斑爆发及极区粒子沉降对低电离层的影响。
4.
EFFECT OF EARTH RESISTIVITY ON ELF/SLF TRANSMISSION TECHNIQUE
大地电阻率在超低频/极低频电波传播技术中的作用
5.
Comparison of three methods of calculating low frequency ground-wave propagation over irregular terrain
不规则地面低频地波传播预测方法的性能比较
6.
Although low frequency sound travels further than high-frequency sound, calls at higher frequencies give the bats more detailed information such as size, range, position, speed and direction of a prey's flight.
尽管低频声音比高频率的声音传播远，但高频叫声使蝙蝠能获得诸如大
7.
The New Theoretical Calculation Method of Extremely Low Frequency Propagation in Earth-Ionosphere Wave Guide;
极低频在地—电离层波导中传播的新的理论计算方法
8.
Wind Energy Flux to Low-frequency Currents in the Ocean and Vertical Propagation of Wind-induced Energy;
风对海洋低频运动的能量输运与能量的垂向传播
9.
The high frequencies are not emitted, the effect of frequency-selective propagation is not very apparent.
没有激发高频，频选传播不很明显。
10.
Elephants may be listening with their feet as well as with their ears, say researchers who are studying how well super-low frequency elephant song moves through the ground.
大象在用耳的同时，还能用脚倾听——研究大象超低频鸣叫地面传播的研究人员如是说。
11.
ringdown signaling
低频监察信号 -用低频电流传送监察信号
12.
Of or relating to the broadcasting or reception of sound.
声频属于或关于声音的传播或接收的
13.
The superficial layers are often frequency selective to transmission.
表层传播一般都有频率选择性。
14.
an omnidirectional antenna tuned to the broadcast frequencies assigned to television.
能够接受电视传播频率的全方位天线。
15.
Frequency shift of laser pulse propagating in wakefield
尾波场中传播的激光脉冲的频率漂移
16.
Chinese Composite Channel in the Age of Mass-decentralized Communication;
分众化传播时代的中国电视综合频道
17.
Analysis of FM Optical Fiber Networking Co-cable Transmission
调频广播光纤联网共缆传输实践分析
18.
Summing up time harmonic propagated waves of all frequency gives the pulse propagation along the line.
加总所有频率成份弦波之时域传播即得时域脉波之传播。