火箭羽流会造成噪声、烟雾、热辐射、环境污染和信号衰减等多种效应，因此研究排气羽流问题至关重要。
The rocket exhaust plume causes the effects of noise, smoke, flame and heat radiation, environment pollution and signal attenuation, etc. So it is important to study exhaust plume.
场源效应受场源高度、信号周期、电阻率、测点距离等的影响。
Source effects vary with field periods, resistivity, source altitude and observation location.
文中介绍了激光信号通过随机大气信道时，大气湍流效应造成了光束抖动、强度起伏，光束扩展和像点抖动等现象。
In this paper the dithering of beam light, the undulating of beam intension, spread of the beam light and the dithering of image are introduced.
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