Second-order sliding mode controller and automatic carrier landing system is designed. The result of simulation research shows the system has good capability of air attenuation.
仿真对比研究表明二阶滑模控制下的着舰导引系统有较好地抑制气流扰动的能力。
The scattering of fog particle influence the images by three aspects: the attenuation of object light, the scattering of air light and the multi-scattering of fog particle.
雾滴的散射通过三个方面对图像产生影响：雾滴对成像光线的透射衰减，空气光即非成像光线的散射及雾滴的多次散射。
Air-fluid level in the left maxillary sinus (red arrow) containing high attenuation is consistent with hematoma.
左侧上颌窦气液平面（红箭）密度较高，符合出血。
When radar signals propagate in the atmosphere, the absorption and scattering of air molecule, aerosol particles, dust and cloud, fog and rain result in energy attenuation of ladar signals.
激光雷达信号在大气中传输时，大气中的气体分子和大气气溶胶粒子、尘埃、雾、雨等对激光信号的吸收和散射导致光信号能量的衰减是影响激光雷达信号传输的重要因素。
The atmosphere attenuation to 650 nm light and the dot whipping caused by air turbulence were analyzed. The signal transmission waveform and communication eye diagram of the system were recorded.
分析了大气对光信号的衰减以及大气湍流造成的光斑抖动对通信的影响，记录了系统的信号传输波形和通信眼图。
The reasonable parameters of the convolute air cover and axial speed attenuation rule were found.
获得了影响回旋气幕形成各主要因素的合理参数以及轴向速度衰减规律。
In this paper it proposed such problems as cool attenuation in designing VRV air conditioning system, merits and demerits of some processing methods of fresh air, and the controlling system of VRV.
本文介绍了VRV空调系统设计中需要考虑的冷量衰减，几种新风处理方法的优缺点以及VRV的控制系统。
Air trapping secondary to bronchial or bronchiolar obstruction may produce focal zones of decreased attenuation, an appearance that can be enhanced by using expiratory ct.
继发于支气管和细支气管阻塞的空气潴留可产生局部低衰减带，后者应用呼气相ct可增强其表现。
L. f. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.
在密闭型耳罩中，利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。
L. f. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.
在密闭型耳罩中，利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。
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